Add simple magma test (#741)

To be run upfront to make sure magma works for BML

tests/C-tests/CMakeLists.txt

@@ -11,6 +11,17 @@ if(BML_OMP_OFFLOAD)
            ${CMAKE_CURRENT_BINARY_DIR}/test-openmp_offload)
 endif()
 
+if(BML_MAGMA)
+  add_executable(test-magma test_magma.c)
+  target_link_libraries(test-magma ${LINK_LIBRARIES})
+  set_target_properties(test-magma
+    PROPERTIES
+    COMPILE_FLAGS ${OpenMP_C_FLAGS}
+    LINK_FLAGS ${OpenMP_C_FLAGS})
+  add_test(test-magma ${BML_NONMPI_PRECOMMAND} ${BML_NONMPI_PRECOMMAND_ARGS}
+           ${CMAKE_CURRENT_BINARY_DIR}/test-magma)
+endif()
+
 set(SOURCES_TYPED
   add_matrix_typed.c
   adjacency_matrix_typed.c

tests/C-tests/test_magma.c

@@ -0,0 +1,81 @@
+#include "magma_v2.h"
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <assert.h>
+#include <sys/time.h>
+
+int
+main(
+    int argc,
+    char *argv[])
+{
+    /* matrix dimensions */
+    int na = 100;
+
+    printf("==========================================\n");
+    printf("MAGMA simple test\n");
+
+    printf("Matrix size: %d\n", na);
+
+    /* allocate the matrices needed */
+    double *da;
+    magma_int_t ret = magma_dmalloc(&da, na * na);
+    if (ret != MAGMA_SUCCESS)
+    {
+        printf("MAGMA allocation failed!\n");
+        return 1;
+    }
+
+    printf("Set matrix on CPU...\n");
+    double *ha = calloc(na * na, sizeof(double));
+    for (int i = 0; i < na; i++)
+    {
+        for (int j = 0; j <= i; j++)
+        {
+            ha[i * na + j] = rand() / (double) RAND_MAX;
+            if (i != j)
+                ha[j * na + i] = ha[i * na + j];
+        }
+    }
+
+    int device;
+    magma_getdevice(&device);
+    magma_queue_t queue;
+    magma_queue_create(device, &queue);
+
+    printf("Set matrix on GPU...\n");
+    magma_dsetmatrix(na, na, ha, na, da, na, queue);
+
+    magma_queue_sync(queue);
+
+    /* copy data back to CPU */
+    double *hb = calloc(na * na, sizeof(double));
+    magma_dgetmatrix(na, na, da, na, hb, na, queue);
+
+    /* check data on CPU */
+    int status = 0;
+    for (int i = 0; i < na * na; i++)
+    {
+        if (fabs(ha[i] - hb[i]) > 1.e-6)
+        {
+            status = 1;
+            printf("index %d, ha = %le, hb = %le\n", i, ha[i], hb[i]);
+        }
+    }
+    if (status == 1)
+        return 1;
+
+    printf("Free resources...\n");
+    ret = magma_free(da);
+    if (ret != MAGMA_SUCCESS)
+    {
+        printf("MAGMA free failed!\n");
+        return 1;
+    }
+
+    free(ha);
+    free(hb);
+
+    return 0;
+}