[5779] | 1 | /************************************************************************/ |
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| 2 | /* PyPAR - Parallel Python using MPI */ |
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| 3 | /* Copyright (C) 2001, 2002 Ole M. Nielsen, Gian Paolo Ciceri */ |
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| 4 | /* */ |
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| 5 | /* See enclosed README file for details of installation and use. */ |
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| 6 | /* */ |
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| 7 | /* This program is free software; you can redistribute it and/or modify */ |
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| 8 | /* it under the terms of the GNU General Public License as published by */ |
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| 9 | /* the Free Software Foundation; either version 2 of the License, or */ |
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| 10 | /* (at your option) any later version. */ |
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| 11 | /* */ |
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| 12 | /* This program is distributed in the hope that it will be useful, */ |
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| 13 | /* but WITHOUT ANY WARRANTY; without even the implied warranty of */ |
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| 14 | /* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the */ |
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| 15 | /* GNU General Public License (http://www.gnu.org/copyleft/gpl.html) */ |
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| 16 | /* for more details. */ |
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| 17 | /* */ |
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| 18 | /* You should have received a copy of the GNU General Public License */ |
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| 19 | /* along with this program; if not, write to the Free Software */ |
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| 20 | /* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307*/ |
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| 21 | /* */ |
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| 22 | /* */ |
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| 23 | /* Contact addresses: Ole.Nielsen@anu.edu.au, gp.ciceri@acm.org */ |
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| 24 | /* */ |
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| 25 | /* version 1.2.1, 16 February 2002 */ |
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| 26 | /* Status block, MPI_ANY_TAG, MPI_ANY_SOURCE exported */ |
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| 27 | /* Version 1.2, 15 February 2002 */ |
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| 28 | /* Scatter added by Gian Paolo Ciceri */ |
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| 29 | /* Version 1.1, 14 February 2002 */ |
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| 30 | /* Bcast added by Gian Paolo Ciceri */ |
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| 31 | /* Version 1.0.2, 10 February 2002 */ |
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| 32 | /* Modified by Gian Paulo Ciceri to allow pypar run under Python 2.2 */ |
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| 33 | /* Version 1.0.1, 8 February 2002 */ |
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| 34 | /* Modified to install on SUN enterprise systems under Mpich */ |
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| 35 | /* Version 1.0, 7 February 2002 */ |
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| 36 | /* First public release for Python 2.1 (OMN) */ |
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| 37 | /************************************************************************/ |
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| 38 | |
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| 39 | |
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| 40 | #include "Python.h" |
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| 41 | #include "mpi.h" |
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| 42 | #include "Numeric/arrayobject.h" |
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| 43 | |
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| 44 | // to handle MPI constants export (shamelessly stolen from _cursesmodule.c) |
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| 45 | #define SetDictInt(string,ch) \ |
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| 46 | PyDict_SetItemString(ModDict, string, PyInt_FromLong((long) (ch))); |
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| 47 | |
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| 48 | // kludge to remap struct MPI_op to int (easier to handle by python) |
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| 49 | #define mpi_MAX 1 |
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| 50 | #define mpi_MIN 2 |
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| 51 | #define mpi_SUM 3 |
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| 52 | #define mpi_PROD 4 |
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| 53 | #define mpi_LAND 5 |
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| 54 | #define mpi_BAND 6 |
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| 55 | #define mpi_LOR 7 |
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| 56 | #define mpi_BOR 8 |
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| 57 | #define mpi_LXOR 9 |
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| 58 | #define mpi_BXOR 10 |
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| 59 | #define mpi_MAXLOC 11 |
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| 60 | #define mpi_MINLOC 12 |
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| 61 | #define mpi_REPLACE 13 |
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| 62 | |
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| 63 | |
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| 64 | |
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| 65 | MPI_Datatype type_map(PyArrayObject *x) { |
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| 66 | |
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| 67 | // |
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| 68 | // TYPE py_type mpi_type bytes symbol |
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| 69 | // ---------------------------------------- |
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| 70 | // INT 4 6 4 'i' |
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| 71 | // LONG 5 8 8 'l' |
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| 72 | // FLOAT 6 10 4 'f' |
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| 73 | // DOUBLE 7 11 8 'd' |
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| 74 | |
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| 75 | |
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| 76 | int py_type; |
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| 77 | MPI_Datatype mpi_type; |
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| 78 | |
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| 79 | if (x -> nd != 1) { |
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| 80 | PyErr_SetString(PyExc_ValueError, "Array must be 1 dimensional"); |
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| 81 | return (MPI_Datatype) 0; |
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| 82 | } |
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| 83 | |
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| 84 | py_type = x -> descr -> type_num; |
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| 85 | if (py_type == PyArray_DOUBLE) |
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| 86 | mpi_type = MPI_DOUBLE; |
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| 87 | else if (py_type == PyArray_LONG) |
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| 88 | mpi_type = MPI_LONG; |
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| 89 | else if (py_type == PyArray_FLOAT) |
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| 90 | mpi_type = MPI_FLOAT; |
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| 91 | else if (py_type == PyArray_INT) |
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| 92 | mpi_type = MPI_INT; |
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| 93 | else { |
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| 94 | PyErr_SetString(PyExc_ValueError, "Array must be of type int or float"); |
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| 95 | return 0; |
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| 96 | } |
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| 97 | |
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| 98 | //printf("Types: %d %d.\n", py_type, mpi_type); |
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| 99 | |
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| 100 | return mpi_type; |
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| 101 | } |
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| 102 | |
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| 103 | MPI_Op op_map(int py_op) { |
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| 104 | |
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| 105 | MPI_Op mpi_op; |
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| 106 | |
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| 107 | if (py_op == mpi_MAX) |
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| 108 | mpi_op = MPI_MAX; |
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| 109 | else if (py_op == mpi_MIN) |
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| 110 | mpi_op = MPI_MIN; |
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| 111 | else if (py_op == mpi_SUM) |
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| 112 | mpi_op = MPI_SUM; |
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| 113 | else if (py_op == mpi_PROD) |
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| 114 | mpi_op = MPI_PROD; |
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| 115 | else if (py_op == mpi_LAND) |
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| 116 | mpi_op = MPI_LAND; |
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| 117 | else if (py_op == mpi_BAND) |
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| 118 | mpi_op = MPI_BAND; |
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| 119 | else if (py_op == mpi_LOR) |
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| 120 | mpi_op = MPI_LOR; |
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| 121 | else if (py_op == mpi_BOR) |
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| 122 | mpi_op = MPI_BOR; |
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| 123 | else if (py_op == mpi_LXOR) |
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| 124 | mpi_op = MPI_LXOR; |
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| 125 | else if (py_op == mpi_BXOR) |
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| 126 | mpi_op = MPI_BXOR; |
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| 127 | else if (py_op == mpi_MAXLOC) |
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| 128 | mpi_op = MPI_MAXLOC; |
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| 129 | else if (py_op == mpi_MINLOC) |
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| 130 | mpi_op = MPI_MINLOC; |
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| 131 | else if (py_op == mpi_REPLACE) |
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| 132 | mpi_op = MPI_REPLACE; |
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| 133 | else { |
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| 134 | PyErr_SetString(PyExc_ValueError, "Operation unknown"); |
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| 135 | return 0; |
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| 136 | } |
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| 137 | |
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| 138 | //printf("Op: %d.\n", py_op); |
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| 139 | |
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| 140 | return mpi_op; |
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| 141 | } |
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| 142 | |
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| 143 | /*********************************************************/ |
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| 144 | /* send_string */ |
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| 145 | /* Send string of characters */ |
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| 146 | /* */ |
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| 147 | /*********************************************************/ |
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| 148 | static PyObject *send_string(PyObject *self, PyObject *args) { |
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| 149 | char *s; |
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| 150 | int destination, tag, length, err; |
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| 151 | |
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| 152 | /* process the parameters */ |
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| 153 | if (!PyArg_ParseTuple(args, "s#ii", &s, &length, &destination, &tag)) |
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| 154 | return NULL; |
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| 155 | |
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| 156 | /* call the MPI routine */ |
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| 157 | err = MPI_Send(s, length, MPI_CHAR, destination, tag, MPI_COMM_WORLD); |
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| 158 | |
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| 159 | return Py_BuildValue("i", err); |
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| 160 | } |
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| 161 | |
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| 162 | /**********************************************************/ |
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| 163 | /* receive_string */ |
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| 164 | /* Receive string of characters */ |
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| 165 | /* */ |
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| 166 | /**********************************************************/ |
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| 167 | static PyObject *receive_string(PyObject *self, PyObject *args) { |
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| 168 | char *s; |
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| 169 | int source, tag, length, err, st_length; |
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| 170 | MPI_Status status; |
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| 171 | |
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| 172 | /* process the parameters */ |
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| 173 | if (!PyArg_ParseTuple(args, "s#ii", &s, &length, &source, &tag)) |
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| 174 | return NULL; |
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| 175 | |
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| 176 | /* call the MPI routine */ |
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| 177 | err = MPI_Recv(s, length, MPI_CHAR, source, tag, MPI_COMM_WORLD, &status); |
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| 178 | |
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| 179 | MPI_Get_count(&status, MPI_CHAR, &st_length); |
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| 180 | // status.st_length is not available in all MPI implementations |
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| 181 | //Alternative is: MPI_Get_elements(MPI_Status *, MPI_Datatype, int *); |
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| 182 | |
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| 183 | return Py_BuildValue("i(iiii)", err, status.MPI_SOURCE, status.MPI_TAG, |
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| 184 | status.MPI_ERROR, st_length); |
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| 185 | } |
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| 186 | |
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| 187 | /**********************************************************/ |
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| 188 | /* bcast_string */ |
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| 189 | /* Broadcast string of characters */ |
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| 190 | /* */ |
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| 191 | /**********************************************************/ |
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| 192 | static PyObject *bcast_string(PyObject *self, PyObject *args) { |
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| 193 | char *s; |
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| 194 | int source, length, err; |
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| 195 | |
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| 196 | /* process the parameters */ |
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| 197 | if (!PyArg_ParseTuple(args, "s#i", &s, &length, &source)) |
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| 198 | return NULL; |
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| 199 | |
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| 200 | /* call the MPI routine */ |
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| 201 | err = MPI_Bcast(s, length, MPI_CHAR, source, MPI_COMM_WORLD); |
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| 202 | |
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| 203 | return Py_BuildValue("i", err); |
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| 204 | } |
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| 205 | |
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| 206 | /**********************************************************/ |
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| 207 | /* scatter_string */ |
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| 208 | /* Scatter string of characters */ |
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| 209 | /* */ |
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| 210 | /**********************************************************/ |
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| 211 | static PyObject *scatter_string(PyObject *self, PyObject *args) { |
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| 212 | char *s; |
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| 213 | char *d; |
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| 214 | int source, length, err; |
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| 215 | |
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| 216 | /* process the parameters */ |
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| 217 | if (!PyArg_ParseTuple(args, "sisi", &s, &length, &d, &source)) |
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| 218 | return NULL; |
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| 219 | |
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| 220 | /* call the MPI routine */ |
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| 221 | err = MPI_Scatter(s, length, MPI_CHAR, d, length, MPI_CHAR, source, MPI_COMM_WORLD); |
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| 222 | |
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| 223 | return Py_BuildValue("i", err); |
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| 224 | } |
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| 225 | |
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| 226 | /**********************************************************/ |
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| 227 | /* gather_string */ |
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| 228 | /* Gather string of characters */ |
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| 229 | /* */ |
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| 230 | /**********************************************************/ |
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| 231 | static PyObject *gather_string(PyObject *self, PyObject *args) { |
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| 232 | char *s; |
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| 233 | char *d; |
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| 234 | int source, length, err; |
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| 235 | |
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| 236 | /* process the parameters */ |
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| 237 | if (!PyArg_ParseTuple(args, "sisi", &s, &length, &d, &source)) |
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| 238 | return NULL; |
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| 239 | |
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| 240 | /* call the MPI routine */ |
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| 241 | err = MPI_Gather(s, length, MPI_CHAR, d, length, MPI_CHAR, source, MPI_COMM_WORLD); |
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| 242 | |
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| 243 | return Py_BuildValue("i", err); |
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| 244 | } |
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| 245 | |
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| 246 | |
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| 247 | /**********************************************************/ |
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| 248 | /* send_array */ |
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| 249 | /* Send Numeric array of type float, double, int, or long */ |
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| 250 | /* */ |
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| 251 | /**********************************************************/ |
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| 252 | static PyObject *send_array(PyObject *self, PyObject *args) { |
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| 253 | PyObject *input; |
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| 254 | PyArrayObject *x; |
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| 255 | int destination, tag, err; |
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| 256 | MPI_Datatype mpi_type; |
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| 257 | |
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| 258 | /* process the parameters */ |
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| 259 | if (!PyArg_ParseTuple(args, "Oii", &input, &destination, &tag)) |
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| 260 | return NULL; |
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| 261 | |
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| 262 | /* Make Numeric array from general sequence type (no cost if already Numeric)*/ |
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| 263 | x = (PyArrayObject *) |
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| 264 | PyArray_ContiguousFromObject(input, PyArray_NOTYPE, 0, 0); |
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| 265 | |
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| 266 | /* Input check and determination of MPI type */ |
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| 267 | mpi_type = type_map(x); |
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| 268 | if (!mpi_type) return NULL; |
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| 269 | |
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| 270 | /* call the MPI routine */ |
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| 271 | err = MPI_Send(x->data, x->dimensions[0], mpi_type, destination, tag,\ |
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| 272 | MPI_COMM_WORLD); |
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| 273 | |
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| 274 | Py_DECREF(x); |
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| 275 | |
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| 276 | return Py_BuildValue("i", err); |
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| 277 | } |
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| 278 | |
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| 279 | /*************************************************************/ |
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| 280 | /* receive_array */ |
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| 281 | /* Receive Numeric array of type float, double, int, or long */ |
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| 282 | /* */ |
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| 283 | /*************************************************************/ |
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| 284 | static PyObject *receive_array(PyObject *self, PyObject *args) { |
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| 285 | PyArrayObject *x; |
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| 286 | int source, tag, err, st_length; |
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| 287 | MPI_Datatype mpi_type; |
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| 288 | MPI_Status status; |
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| 289 | |
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| 290 | /* process the parameters */ |
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| 291 | if (!PyArg_ParseTuple(args, "Oii", &x, &source, &tag)) |
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| 292 | return NULL; |
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| 293 | |
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| 294 | /* Input check and determination of MPI type */ |
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| 295 | mpi_type = type_map(x); |
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| 296 | if (!mpi_type) return NULL; |
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| 297 | |
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| 298 | /* call the MPI routine */ |
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| 299 | err = MPI_Recv(x->data, x->dimensions[0], mpi_type, source, tag, \ |
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| 300 | MPI_COMM_WORLD, &status); |
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| 301 | |
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| 302 | MPI_Get_count(&status, mpi_type, &st_length); |
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| 303 | // status.st_length is not available in all MPI implementations |
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| 304 | //Alternative is: MPI_Get_elements(MPI_Status *, MPI_Datatype, int *); |
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| 305 | |
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| 306 | |
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| 307 | return Py_BuildValue("i(iiii)", err, status.MPI_SOURCE, status.MPI_TAG, |
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| 308 | status.MPI_ERROR, st_length); |
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| 309 | } |
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| 310 | |
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| 311 | |
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| 312 | /*************************************************************/ |
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| 313 | /* bcast_array */ |
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| 314 | /* Broadcast Num. array of type float, double, int, or long */ |
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| 315 | /* */ |
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| 316 | /*************************************************************/ |
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| 317 | static PyObject *bcast_array(PyObject *self, PyObject *args) { |
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| 318 | PyArrayObject *x; |
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| 319 | int source, err; |
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| 320 | MPI_Datatype mpi_type; |
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| 321 | MPI_Status status; |
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| 322 | |
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| 323 | /* process the parameters */ |
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| 324 | if (!PyArg_ParseTuple(args, "Oi", &x, &source)) |
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| 325 | return NULL; |
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| 326 | |
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| 327 | /* Input check and determination of MPI type */ |
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| 328 | mpi_type = type_map(x); |
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| 329 | if (!mpi_type) return NULL; |
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| 330 | |
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| 331 | /* call the MPI routine */ |
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| 332 | err = MPI_Bcast(x->data, x->dimensions[0], mpi_type, source, \ |
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| 333 | MPI_COMM_WORLD); |
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| 334 | |
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| 335 | return Py_BuildValue("i", err); |
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| 336 | } |
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| 337 | |
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| 338 | /*************************************************************/ |
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| 339 | /* scatter_array */ |
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| 340 | /* Scatter Num. array of type float, double, int, or long */ |
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| 341 | /* */ |
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| 342 | /*************************************************************/ |
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| 343 | static PyObject *scatter_array(PyObject *self, PyObject *args) { |
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| 344 | PyArrayObject *x; |
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| 345 | PyArrayObject *d; |
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| 346 | int length, source, err; |
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| 347 | MPI_Datatype mpi_type; |
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| 348 | MPI_Status status; |
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| 349 | |
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| 350 | /* process the parameters */ |
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| 351 | if (!PyArg_ParseTuple(args, "OiOi", &x, &length, &d, &source)) |
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| 352 | return NULL; |
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| 353 | |
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| 354 | /* Input check and determination of MPI type */ |
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| 355 | mpi_type = type_map(x); |
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| 356 | if (!mpi_type) return NULL; |
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| 357 | |
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| 358 | /* call the MPI routine */ |
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| 359 | err = MPI_Scatter(x->data, length, mpi_type, d->data, length, mpi_type, source, \ |
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| 360 | MPI_COMM_WORLD); |
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| 361 | |
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| 362 | return Py_BuildValue("i", err); |
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| 363 | } |
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| 364 | |
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| 365 | |
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| 366 | /*************************************************************/ |
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| 367 | /* gather_array */ |
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| 368 | /* Gather Num. array of type float, double, int, or long */ |
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| 369 | /* */ |
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| 370 | /*************************************************************/ |
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| 371 | static PyObject *gather_array(PyObject *self, PyObject *args) { |
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| 372 | PyArrayObject *x; |
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| 373 | PyArrayObject *d; |
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| 374 | int length, source, err; |
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| 375 | MPI_Datatype mpi_type; |
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| 376 | MPI_Status status; |
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| 377 | |
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| 378 | /* process the parameters */ |
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| 379 | if (!PyArg_ParseTuple(args, "OiOi", &x, &length, &d, &source)) |
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| 380 | return NULL; |
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| 381 | |
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| 382 | /* Input check and determination of MPI type */ |
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| 383 | mpi_type = type_map(x); |
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| 384 | if (!mpi_type) return NULL; |
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| 385 | |
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| 386 | /* call the MPI routine */ |
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| 387 | err = MPI_Gather(x->data, length, mpi_type, d->data, length, mpi_type, source, \ |
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| 388 | MPI_COMM_WORLD); |
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| 389 | |
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| 390 | return Py_BuildValue("i", err); |
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| 391 | } |
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| 392 | |
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| 393 | |
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| 394 | /*************************************************************/ |
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| 395 | /* reduce_array */ |
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| 396 | /* Reduce Num. array of type float, double, int, or long */ |
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| 397 | /* */ |
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| 398 | /*************************************************************/ |
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| 399 | static PyObject *reduce_array(PyObject *self, PyObject *args) { |
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| 400 | PyArrayObject *x; |
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| 401 | PyArrayObject *d; |
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| 402 | int length, source, op, err; |
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| 403 | MPI_Datatype mpi_type; |
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| 404 | MPI_Status status; |
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| 405 | MPI_Op mpi_op; |
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| 406 | |
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| 407 | /* process the parameters */ |
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| 408 | if (!PyArg_ParseTuple(args, "OOiii", &x, &d, &length, &op, &source)) |
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| 409 | return NULL; |
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| 410 | |
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| 411 | /* Input check and determination of MPI type */ |
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| 412 | mpi_type = type_map(x); |
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| 413 | if (!mpi_type) return NULL; |
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| 414 | |
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| 415 | /* Input check and determination of MPI op */ |
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| 416 | //printf("op: %d\n", op); |
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| 417 | mpi_op = op_map(op); |
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| 418 | if (!mpi_op) return NULL; |
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| 419 | |
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| 420 | |
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| 421 | if (op == mpi_MAXLOC || op == mpi_MINLOC) { |
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| 422 | //not implemented |
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| 423 | return Py_BuildValue("i", -666); |
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| 424 | } |
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| 425 | else { |
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| 426 | /* call the MPI routine */ |
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| 427 | err = MPI_Reduce(x->data, d->data, length, mpi_type, mpi_op, source, \ |
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| 428 | MPI_COMM_WORLD); |
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| 429 | } |
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| 430 | |
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| 431 | |
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| 432 | return Py_BuildValue("i", err); |
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| 433 | } |
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| 434 | |
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| 435 | |
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| 436 | |
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| 437 | /*********************************************************/ |
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| 438 | /* MPI calls rank, size, finalize, abort */ |
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| 439 | /* */ |
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| 440 | /*********************************************************/ |
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| 441 | |
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| 442 | static PyObject * rank(PyObject *self, PyObject *args) { |
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| 443 | int myid; |
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| 444 | |
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| 445 | MPI_Comm_rank(MPI_COMM_WORLD,&myid); |
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| 446 | return Py_BuildValue("i", myid); |
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| 447 | } |
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| 448 | |
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| 449 | static PyObject * size(PyObject *self, PyObject *args) { |
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| 450 | int numprocs; |
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| 451 | |
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| 452 | MPI_Comm_size(MPI_COMM_WORLD,&numprocs); |
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| 453 | return Py_BuildValue("i", numprocs); |
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| 454 | } |
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| 455 | |
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| 456 | static PyObject * Get_processor_name(PyObject *self, PyObject *args) { |
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| 457 | char processor_name[MPI_MAX_PROCESSOR_NAME]; |
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| 458 | int namelen; |
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| 459 | |
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| 460 | MPI_Get_processor_name(processor_name,&namelen); |
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| 461 | return Py_BuildValue("s#", processor_name, namelen); |
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| 462 | } |
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| 463 | |
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| 464 | static PyObject * Finalize(PyObject *self, PyObject *args) { |
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| 465 | int error; |
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| 466 | |
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| 467 | error = MPI_Finalize(); |
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| 468 | return Py_BuildValue("i", error); |
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| 469 | } |
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| 470 | |
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| 471 | static PyObject * Abort(PyObject *self, PyObject *args) { |
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| 472 | int error, code=0; |
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| 473 | |
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| 474 | error = MPI_Abort(MPI_COMM_WORLD, code); |
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| 475 | return Py_BuildValue("i", error); |
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| 476 | } |
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| 477 | |
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| 478 | static PyObject * Barrier(PyObject *self, PyObject *args) { |
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| 479 | int error; |
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| 480 | |
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| 481 | error = MPI_Barrier(MPI_COMM_WORLD); |
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| 482 | return Py_BuildValue("i", error); |
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| 483 | } |
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| 484 | |
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| 485 | static PyObject * Wtime(PyObject *self, PyObject *args) { |
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| 486 | double t; |
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| 487 | |
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| 488 | t = MPI_Wtime(); |
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| 489 | return Py_BuildValue("d", t); |
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| 490 | } |
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| 491 | |
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| 492 | /**********************************/ |
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| 493 | /* Method table for python module */ |
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| 494 | /**********************************/ |
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| 495 | |
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| 496 | static struct PyMethodDef MethodTable[] = { |
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| 497 | {"size", size, METH_VARARGS}, |
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| 498 | {"rank", rank, METH_VARARGS}, |
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| 499 | {"Barrier", Barrier, METH_VARARGS}, |
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| 500 | {"Wtime", Wtime, METH_VARARGS}, |
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| 501 | {"Get_processor_name", Get_processor_name, METH_VARARGS}, |
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| 502 | {"Finalize", Finalize, METH_VARARGS}, |
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| 503 | {"Abort", Abort, METH_VARARGS}, |
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| 504 | {"send_string", send_string, METH_VARARGS}, |
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| 505 | {"receive_string", receive_string, METH_VARARGS}, |
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| 506 | {"bcast_string", bcast_string, METH_VARARGS}, |
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| 507 | {"scatter_string", scatter_string, METH_VARARGS}, |
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| 508 | {"gather_string", gather_string, METH_VARARGS}, |
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| 509 | {"send_array", send_array, METH_VARARGS}, |
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| 510 | {"receive_array", receive_array, METH_VARARGS}, |
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| 511 | {"bcast_array", bcast_array, METH_VARARGS}, |
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| 512 | {"scatter_array", scatter_array, METH_VARARGS}, |
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| 513 | {"gather_array", gather_array, METH_VARARGS}, |
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| 514 | {"reduce_array", reduce_array, METH_VARARGS}, |
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| 515 | {NULL, NULL} |
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| 516 | }; |
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| 517 | |
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| 518 | |
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| 519 | /***************************/ |
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| 520 | /* Initialisation Function */ |
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| 521 | /***************************/ |
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| 522 | |
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| 523 | void initmpi(){ |
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| 524 | int error, argc = 0; //Dummy |
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| 525 | char **argv; //Dummy |
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| 526 | PyObject *m, *ModDict; |
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| 527 | |
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| 528 | //printf("Initialising MPI\n"); |
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| 529 | error = MPI_Init(&argc, &argv); |
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| 530 | //printf("MPI Initialised\n"); |
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| 531 | |
---|
| 532 | //FIXME: Make a sensible errorcheck here |
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| 533 | |
---|
| 534 | m = Py_InitModule("mpi", MethodTable); |
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| 535 | |
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| 536 | // to handle MPI symbolic constants |
---|
| 537 | ModDict = PyModule_GetDict(m); |
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| 538 | SetDictInt("MPI_ANY_TAG", MPI_ANY_TAG); |
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| 539 | SetDictInt("MPI_ANY_SOURCE", MPI_ANY_SOURCE); |
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| 540 | SetDictInt("mpi_MAX", mpi_MAX); |
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| 541 | SetDictInt("mpi_MIN", mpi_MIN); |
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| 542 | SetDictInt("mpi_SUM", mpi_SUM); |
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| 543 | SetDictInt("mpi_PROD", mpi_PROD); |
---|
| 544 | SetDictInt("mpi_LAND", mpi_LAND); |
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| 545 | SetDictInt("mpi_BAND", mpi_BAND); |
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| 546 | SetDictInt("mpi_LOR", mpi_LOR); |
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| 547 | SetDictInt("mpi_BOR", mpi_BOR); |
---|
| 548 | SetDictInt("mpi_LXOR", mpi_LXOR); |
---|
| 549 | SetDictInt("mpi_BXOR", mpi_BXOR); |
---|
| 550 | SetDictInt("mpi_MAXLOC", mpi_MAXLOC); |
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| 551 | SetDictInt("mpi_MINLOC", mpi_MINLOC); |
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| 552 | SetDictInt("mpi_REPLACE", mpi_REPLACE); |
---|
| 553 | |
---|
| 554 | //SetDictInt("MPI_COMM_WORLD", MPI_COMM_WORLD); |
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| 555 | |
---|
| 556 | import_array(); //Necessary for handling of NumPY structures |
---|
| 557 | } |
---|
| 558 | |
---|
| 559 | |
---|
| 560 | |
---|
| 561 | |
---|
| 562 | |
---|
| 563 | /*********************************************************************/ |
---|
| 564 | /* OBSOLETE STUFF */ |
---|
| 565 | /*********************************************************************/ |
---|
| 566 | |
---|
| 567 | /******************************************/ |
---|
| 568 | /* keep for doc of Numeric arrays etc */ |
---|
| 569 | /******************************************/ |
---|
| 570 | |
---|
| 571 | void print_real_array(PyArrayObject *x) { |
---|
| 572 | int i; |
---|
| 573 | for (i=0; i<x->dimensions[0]; i++) { |
---|
| 574 | printf("%f ", *(double*) (x->data + i*x->strides[0])); |
---|
| 575 | } |
---|
| 576 | } |
---|
| 577 | |
---|
| 578 | void print_int_array(PyArrayObject *x) { |
---|
| 579 | int i; |
---|
| 580 | for (i=0; i<x->dimensions[0]; i++) { |
---|
| 581 | printf("%d ", *(int*) (x->data + i*x->strides[0])); |
---|
| 582 | } |
---|
| 583 | } |
---|
| 584 | |
---|
| 585 | |
---|
| 586 | /*********************************************************/ |
---|
| 587 | /* send_real_array */ |
---|
| 588 | /* Send Numeric array of double floating point numbers */ |
---|
| 589 | /* */ |
---|
| 590 | /*********************************************************/ |
---|
| 591 | static PyObject *send_real_array(PyObject *self, PyObject *args) { |
---|
| 592 | PyObject *input; |
---|
| 593 | PyArrayObject *x; |
---|
| 594 | int destination, tag, err; |
---|
| 595 | |
---|
| 596 | /* process the parameters */ |
---|
| 597 | if (!PyArg_ParseTuple(args, "Oii", &input, &destination, &tag)) |
---|
| 598 | return NULL; |
---|
| 599 | |
---|
| 600 | /* Make Numeric array from general sequence type (no cost if already Numeric)*/ |
---|
| 601 | x = (PyArrayObject *) |
---|
| 602 | PyArray_ContiguousFromObject(input, PyArray_DOUBLE, 0, 0); |
---|
| 603 | |
---|
| 604 | /* call the MPI routine */ |
---|
| 605 | err = MPI_Send(x->data, x->dimensions[0], MPI_DOUBLE, destination, tag,\ |
---|
| 606 | MPI_COMM_WORLD); |
---|
| 607 | |
---|
| 608 | Py_DECREF(x); |
---|
| 609 | return Py_BuildValue("i", err); |
---|
| 610 | } |
---|
| 611 | |
---|
| 612 | /**********************************************************/ |
---|
| 613 | /* receive_real_array */ |
---|
| 614 | /* Receive Numeric array of double floating point numbers */ |
---|
| 615 | /* */ |
---|
| 616 | /**********************************************************/ |
---|
| 617 | static PyObject *receive_real_array(PyObject *self, PyObject *args) { |
---|
| 618 | PyArrayObject *x; |
---|
| 619 | int source, tag, err; |
---|
| 620 | MPI_Status status; |
---|
| 621 | |
---|
| 622 | /* process the parameters */ |
---|
| 623 | if (!PyArg_ParseTuple(args, "Oii", &x, &source, &tag)) |
---|
| 624 | return NULL; |
---|
| 625 | |
---|
| 626 | /* call the MPI routine */ |
---|
| 627 | err = MPI_Recv(x->data, x->dimensions[0], MPI_DOUBLE, source, tag, \ |
---|
| 628 | MPI_COMM_WORLD, &status); |
---|
| 629 | |
---|
| 630 | |
---|
| 631 | return Py_BuildValue("i", err); |
---|
| 632 | } |
---|
| 633 | |
---|
| 634 | |
---|
| 635 | |
---|