Transfer files from RAD repository

tests/sos_tests/reduce_active_set.cpp

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+/*
+ *  Copyright (c) 2017 Intel Corporation. All rights reserved.
+ *  This software is available to you under the BSD license below:
+ *
+ *      Redistribution and use in source and binary forms, with or
+ *      without modification, are permitted provided that the following
+ *      conditions are met:
+ *
+ *      - Redistributions of source code must retain the above
+ *        copyright notice, this list of conditions and the following
+ *        disclaimer.
+ *
+ *      - Redistributions in binary form must reproduce the above
+ *        copyright notice, this list of conditions and the following
+ *        disclaimer in the documentation and/or other materials
+ *        provided with the distribution.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+#include <stdio.h>
+
+#include <roc_shmem/roc_shmem.hpp>
+
+using namespace rocshmem;
+
+#define NELEM 10
+
+int main(void) {
+  int i, me, npes;
+  int errors = 0;
+  long *src, *dst_max, *dst_min;
+  long *min_psync, *max_psync;
+  long *min_pwrk, *max_pwrk;
+
+  roc_shmem_init();
+
+  me = roc_shmem_my_pe();
+  npes = roc_shmem_n_pes();
+
+  src = (long *)roc_shmem_malloc(NELEM * sizeof(long));
+  dst_max = (long *)roc_shmem_malloc(NELEM * sizeof(long));
+  dst_min = (long *)roc_shmem_malloc(NELEM * sizeof(long));
+
+  for (i = 0; i < NELEM; i++) {
+    src[i] = me;
+    dst_max[i] = -1;
+    dst_min[i] = -1;
+  }
+
+  max_psync =
+      (long *)roc_shmem_malloc(ROC_SHMEM_REDUCE_SYNC_SIZE * sizeof(long));
+  min_psync =
+      (long *)roc_shmem_malloc(ROC_SHMEM_REDUCE_SYNC_SIZE * sizeof(long));
+  for (i = 0; i < ROC_SHMEM_REDUCE_SYNC_SIZE; i++) {
+    max_psync[i] = ROC_SHMEM_SYNC_VALUE;
+    min_psync[i] = ROC_SHMEM_SYNC_VALUE;
+  }
+
+  max_pwrk = (long *)roc_shmem_malloc(
+      (NELEM / 2 + ROC_SHMEM_REDUCE_MIN_WRKDATA_SIZE) * sizeof(long));
+  min_pwrk = (long *)roc_shmem_malloc(
+      (NELEM / 2 + ROC_SHMEM_REDUCE_MIN_WRKDATA_SIZE) * sizeof(long));
+
+  if (me == 0) printf("Shrinking active set test\n");
+
+  roc_shmem_barrier_all();
+
+  /* A total of npes tests are performed, where the active set in each test
+   * includes PEs i..npes-1 */
+  for (i = 0; i <= me; i++) {
+    int j;
+
+    if (me == i)
+      printf(" + PE_start=%d, logPE_stride=0, PE_size=%d\n", i, npes - i);
+
+    roc_shmem_ctx_long_max_to_all(ROC_SHMEM_CTX_DEFAULT, dst_max, src, NELEM, i,
+                                  0, npes - i, max_pwrk, max_psync);
+
+    /* Validate reduced data */
+    for (j = 0; j < NELEM; j++) {
+      long expected = npes - 1;
+      if (dst_max[j] != expected) {
+        printf(
+            "%d: Max expected dst_max[%d] = %ld, got dst_max[%d] = %ld, "
+            "iteration %d\n",
+            me, j, expected, j, dst_max[j], i);
+        errors++;
+      }
+    }
+
+    roc_shmem_ctx_long_min_to_all(ROC_SHMEM_CTX_DEFAULT, dst_min, src, NELEM, i,
+                                  0, npes - i, min_pwrk, min_psync);
+
+    /* Validate reduced data */
+    for (j = 0; j < NELEM; j++) {
+      long expected = i;
+      if (dst_min[j] != expected) {
+        printf(
+            "%d: Min expected dst_min[%d] = %ld, got dst_min[%d] = %ld, "
+            "iteration %d\n",
+            me, j, expected, j, dst_min[j], i);
+        errors++;
+      }
+    }
+  }
+
+  roc_shmem_free(src);
+  roc_shmem_free(dst_max);
+  roc_shmem_free(dst_min);
+
+  roc_shmem_free(max_psync);
+  roc_shmem_free(min_psync);
+
+  roc_shmem_free(max_pwrk);
+  roc_shmem_free(min_pwrk);
+
+  roc_shmem_finalize();
+
+  return errors != 0;
+}