nudles commented on a change in pull request #468: Distributted module
URL: https://github.com/apache/incubator-singa/pull/468#discussion_r299963415
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File path: include/singa/dist/communicator.h
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@@ -0,0 +1,66 @@
+#ifndef SINGA_DIST_COMMUNICATOR_H_
+#define SINGA_DIST_COMMUNICATOR_H_
+
+#include <iostream>
+#include <cstdint>
+#include <unistd.h>
+
+#include <cuda_runtime.h>
+#include <nccl.h>
+#include <mpi.h>
+#include "singa/core/tensor.h"
+
+namespace singa{
+
+#define MPICHECK(cmd) do { \
+ int e = cmd; \
+ if( e != MPI_SUCCESS ) { \
+ printf("Failed: MPI error %s:%d '%d'\n", \
+ __FILE__,__LINE__, e); \
+ exit(EXIT_FAILURE); \
+ } \
+} while(0)
+
+
+#define CUDACHECK(cmd) do { \
Review comment:
there is a cuda check function
https://github.com/apache/incubator-singa/blob/master/include/singa/utils/cuda_utils.h#L79
can reuse it?
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