2.4.2-1

Add tree algorithms for allreduce to improve performance at scale.
Add ncclCommAbort() and ncclCommGetAsyncError() to properly handle
network errors and be permit recover.
Detect initial CPU affinity and no longer escape it.


[ROCm/rccl commit: 1450d42675]

projects/rccl/src/include/checks.h

@@ -0,0 +1,10 @@
+/*************************************************************************
+ * Copyright (c) 2018, NVIDIA CORPORATION. All rights reserved.
+ *
+ * See LICENSE.txt for license information
+ ************************************************************************/
+
+#include "core.h"
+
+ncclResult_t PtrCheck(void* ptr, const char* opname, const char* ptrname);
+ncclResult_t ArgsCheck(struct ncclInfo* info);