mpi/tests: new testcase

mpi/tests/Makefile.am

@@ -83,6 +83,7 @@ starpu_mpi_TESTS =				\
 	mpi_isend				\
 	mpi_earlyrecv				\
 	mpi_earlyrecv2				\
+	mpi_earlyrecv2_detached			\
 	mpi_irecv				\
 	mpi_isend_detached			\
 	mpi_irecv_detached			\
@@ -111,6 +112,7 @@ noinst_PROGRAMS =				\
 	mpi_isend				\
 	mpi_earlyrecv				\
 	mpi_earlyrecv2				\
+	mpi_earlyrecv2_detached			\
 	mpi_irecv				\
 	mpi_isend_detached			\
 	mpi_irecv_detached			\
@@ -138,6 +140,8 @@ mpi_earlyrecv_LDADD =					\
 	../src/libstarpumpi-@STARPU_EFFECTIVE_VERSION@.la
 mpi_earlyrecv2_LDADD =					\
 	../src/libstarpumpi-@STARPU_EFFECTIVE_VERSION@.la
+mpi_earlyrecv2_detached_LDADD =				\
+	../src/libstarpumpi-@STARPU_EFFECTIVE_VERSION@.la
 mpi_irecv_LDADD =					\
 	../src/libstarpumpi-@STARPU_EFFECTIVE_VERSION@.la
 mpi_isend_detached_LDADD =			\

mpi/tests/mpi_earlyrecv2_detached.c

@@ -0,0 +1,118 @@
+/* StarPU --- Runtime system for heterogeneous multicore architectures.
+ *
+ * Copyright (C) 2009, 2010  Université de Bordeaux 1
+ * Copyright (C) 2010, 2011, 2012, 2013  Centre National de la Recherche Scientifique
+ *
+ * StarPU is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation; either version 2.1 of the License, or (at
+ * your option) any later version.
+ *
+ * StarPU is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ *
+ * See the GNU Lesser General Public License in COPYING.LGPL for more details.
+ */
+
+#include <starpu_mpi.h>
+#include "helper.h"
+#include <unistd.h>
+
+//#define NB 1000
+#define NB 10
+
+static starpu_pthread_mutex_t mutex = STARPU_PTHREAD_MUTEX_INITIALIZER;
+static starpu_pthread_cond_t cond = STARPU_PTHREAD_COND_INITIALIZER;
+
+void callback(void *arg STARPU_ATTRIBUTE_UNUSED)
+{
+	unsigned *received = arg;
+
+	STARPU_PTHREAD_MUTEX_LOCK(&mutex);
+	*received = *received + 1;
+	FPRINTF_MPI("Requests %d received\n", *received);
+	STARPU_PTHREAD_COND_SIGNAL(&cond);
+	STARPU_PTHREAD_MUTEX_UNLOCK(&mutex);
+}
+
+int main(int argc, char **argv)
+{
+	int ret, rank, size, i;
+	starpu_data_handle_t tab_handle[NB];
+	int value[NB];
+
+	MPI_Init(NULL, NULL);
+	MPI_Comm_rank(MPI_COMM_WORLD, &rank);
+	MPI_Comm_size(MPI_COMM_WORLD, &size);
+
+	if (size%2 != 0)
+	{
+		if (rank == 0)
+			FPRINTF(stderr, "We need a even number of processes.\n");
+
+		MPI_Finalize();
+		return STARPU_TEST_SKIPPED;
+	}
+
+	ret = starpu_init(NULL);
+	STARPU_CHECK_RETURN_VALUE(ret, "starpu_init");
+	ret = starpu_mpi_init(NULL, NULL, 0);
+	STARPU_CHECK_RETURN_VALUE(ret, "starpu_mpi_init");
+
+	for(i=0 ; i<NB ; i++)
+	{
+		value[i]=i*rank;
+		starpu_variable_data_register(&tab_handle[i], STARPU_MAIN_RAM, (uintptr_t)&value[i], sizeof(int));
+		starpu_data_set_tag(tab_handle[i], i);
+	}
+
+	int other_rank = rank%2 == 0 ? rank+1 : rank-1;
+	FPRINTF_MPI("Exchanging with rank %d\n", other_rank);
+
+	if (rank%2)
+	{
+		starpu_mpi_send(tab_handle[0], other_rank, 0, MPI_COMM_WORLD);
+		starpu_mpi_send(tab_handle[NB-1], other_rank, NB-1, MPI_COMM_WORLD);
+		for(i=1 ; i<NB-1 ; i++)
+		{
+			starpu_mpi_send(tab_handle[i], other_rank, i, MPI_COMM_WORLD);
+		}
+	}
+	else
+	{
+		int received = 0;
+
+		starpu_mpi_irecv_detached(tab_handle[0], other_rank, 0, MPI_COMM_WORLD, callback, &received);
+		usleep(2000000);
+		// We sleep to make sure that the data for the tag 9 will be received before the recv is posted
+		for(i=1 ; i<NB ; i++)
+		{
+			starpu_mpi_irecv_detached(tab_handle[i], other_rank, i, MPI_COMM_WORLD, callback, &received);
+		}
+
+		STARPU_PTHREAD_MUTEX_LOCK(&mutex);
+		while (received != NB)
+		{
+			FPRINTF_MPI("Received %d messages\n", received);
+			STARPU_PTHREAD_COND_WAIT(&cond, &mutex);
+		}
+		STARPU_PTHREAD_MUTEX_UNLOCK(&mutex);
+
+		for(i=0 ; i<NB ; i++)
+		{
+			int *rvalue = (int *)starpu_data_get_local_ptr(tab_handle[i]);
+			STARPU_ASSERT_MSG(*rvalue==i*other_rank, "Incorrect received value: %d != %d\n", *rvalue, i*other_rank);
+		}
+	}
+
+	for(i=0 ; i<NB ; i++)
+		starpu_data_unregister(tab_handle[i]);
+
+	starpu_mpi_shutdown();
+	starpu_shutdown();
+
+	MPI_Finalize();
+
+	return 0;
+}