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

[ROCm/rccl commit: 299c554dcc]

projects/rccl/src/include/enqueue.h

@@ -7,14 +7,9 @@
 #ifndef NCCL_ENQUEUE_H_
 #define NCCL_ENQUEUE_H_
 
-#include "core.h"
+#include "comm.h"
 #include "group.h"
-
-// Channels / LL tuning
-#define NCCL_LL_CHANNEL_THRESHOLD 8 // Per thread size before we start increasing nrings
-#define NCCL_THREAD_THRESHOLD 64  // Per thread size before we switch to non-LL
-#define NCCL_THREAD_THRESHOLD_PREVOLTA 32 // Per thread size before we switch to non-LL for pre-Volta archs
-#define NCCL_LL_MIN_NTHREADS 64
+#include "collectives.h"
 
 ncclResult_t ncclEnqueueCheck(struct ncclInfo* info);
 ncclResult_t ncclCpuBarrierIn(ncclComm_t comm, int* isLast);