mpi/tests: new testcase for receiving early several datas

mpi/tests/Makefile.am

@@ -103,7 +103,8 @@ starpu_mpi_TESTS =				\
 	mpi_scatter_gather			\
 	mpi_reduction				\
 	user_defined_datatype			\
-	gather
+	gather					\
+	gather2
 
 noinst_PROGRAMS =				\
 	datatypes				\
@@ -132,7 +133,8 @@ noinst_PROGRAMS =				\
 	mpi_scatter_gather			\
 	mpi_reduction				\
 	user_defined_datatype			\
-	gather
+	gather					\
+	gather2
 
 mpi_isend_LDADD =					\
 	../src/libstarpumpi-@STARPU_EFFECTIVE_VERSION@.la
@@ -188,6 +190,8 @@ user_defined_datatype_LDADD =			\
 	../src/libstarpumpi-@STARPU_EFFECTIVE_VERSION@.la
 gather_LDADD =			\
 	../src/libstarpumpi-@STARPU_EFFECTIVE_VERSION@.la
+gather2_LDADD =			\
+	../src/libstarpumpi-@STARPU_EFFECTIVE_VERSION@.la
 
 ring_SOURCES = ring.c
 ring_async_SOURCES = ring_async.c

mpi/tests/gather2.c

@@ -0,0 +1,98 @@
+/* StarPU --- Runtime system for heterogeneous multicore architectures.
+ *
+ * Copyright (C) 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"
+
+int main(int argc, char **argv)
+{
+	int ret, rank, size;
+
+	MPI_Init(NULL, NULL);
+	MPI_Comm_rank(MPI_COMM_WORLD, &rank);
+	MPI_Comm_size(MPI_COMM_WORLD, &size);
+
+	if (size<3)
+	{
+		if (rank == 0)
+			FPRINTF(stderr, "We need more than 2 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");
+
+	if (rank == 0)
+	{
+		int n;
+		for(n=1 ; n<size ; n++)
+		{
+			int i, var[2];
+			MPI_Status status[3];
+			starpu_data_handle_t handle[2];
+
+			FPRINTF_MPI("receiving from node %d\n", n);
+			for(i=0 ; i<2 ; i++)
+				starpu_variable_data_register(&handle[i], 0, (uintptr_t)&var[i], sizeof(var[i]));
+
+			starpu_mpi_recv(handle[0], n, 42, MPI_COMM_WORLD, &status[0]);
+			starpu_data_acquire(handle[0], STARPU_R);
+			STARPU_ASSERT_MSG(var[0] == n, "Received incorrect value <%d> from node <%d>\n", var[0], n);
+			FPRINTF_MPI("received <%d> from node %d\n", var[0], n);
+			starpu_data_release(handle[0]);
+
+			starpu_mpi_recv(handle[0], n, 42, MPI_COMM_WORLD, &status[1]);
+			starpu_mpi_recv(handle[1], n, 44, MPI_COMM_WORLD, &status[2]);
+			for(i=0 ; i<2 ; i++)
+				starpu_data_acquire(handle[i], STARPU_R);
+			STARPU_ASSERT_MSG(var[0] == n*2, "Received incorrect value <%d> from node <%d>\n", var[0], n);
+			STARPU_ASSERT_MSG(var[1] == n*4, "Received incorrect value <%d> from node <%d>\n", var[0], n);
+			FPRINTF_MPI("received <%d> and <%d> from node %d\n", var[0], var[1], n);
+			for(i=0 ; i<2 ; i++)
+				starpu_data_release(handle[i]);
+			for(i=0 ; i<2 ; i++)
+				starpu_data_unregister(handle[i]);
+		}
+	}
+	else
+	{
+		int i, var[3];
+		starpu_data_handle_t handle[3];
+
+		FPRINTF_MPI("sending to node %d\n", 0);
+		var[0] = rank;
+		var[1] = var[0] * 2;
+		var[2] = var[0] * 4;
+		for(i=0 ; i<3 ; i++)
+			starpu_variable_data_register(&handle[i], 0, (uintptr_t)&var[i], sizeof(var[i]));
+		starpu_mpi_send(handle[0], 0, 42, MPI_COMM_WORLD);
+		starpu_mpi_send(handle[1], 0, 42, MPI_COMM_WORLD);
+		starpu_mpi_send(handle[2], 0, 44, MPI_COMM_WORLD);
+		for(i=0 ; i<3 ; i++)
+			starpu_data_unregister(handle[i]);
+	}
+
+	starpu_mpi_shutdown();
+	starpu_shutdown();
+
+	MPI_Finalize();
+
+	return ret;
+}