2.5.6-1 (#255)

Add LL128 Protocol.

Rewrite the topology detection and tree/ring creation (#179). Improve
tree performance by sending/receiving from different GPUs. Add
model-based tuning to switch between the different algorithms and
protocols.

Rework P2P/SHM detection in containers (#155, #248).

Detect duplicated devices and return an error (#231).

Add tuning for GCP

src/include/argcheck.h

@@ -8,6 +8,7 @@
 #define NCCL_ARGCHECK_H_
 
 #include "core.h"
+#include "info.h"
 
 ncclResult_t PtrCheck(void* ptr, const char* opname, const char* ptrname);
 ncclResult_t ArgsCheck(struct ncclInfo* info);