2.7.3-1

Add support for A100 GPU and related platforms.
Add support for CUDA 11.
Add support for send/receive operations (beta).


[ROCm/rccl commit: 5949d96f36]

projects/rccl/makefiles/common.mk

@@ -23,19 +23,24 @@ CUDA_MINOR = $(shell echo $(CUDA_VERSION) | cut -d "." -f 2)
 #$(info CUDA_VERSION ${CUDA_MAJOR}.${CUDA_MINOR})
 
 
-# Better define NVCC_GENCODE in your environment to the minimal set
+# You should define NVCC_GENCODE in your environment to the minimal set
 # of archs to reduce compile time.
 CUDA8_GENCODE = -gencode=arch=compute_35,code=sm_35 \
                 -gencode=arch=compute_50,code=sm_50 \
                 -gencode=arch=compute_60,code=sm_60 \
                 -gencode=arch=compute_61,code=sm_61
 CUDA9_GENCODE = -gencode=arch=compute_70,code=sm_70
+CUDA11_GENCODE = -gencode=arch=compute_80,code=sm_80
 
 CUDA8_PTX     = -gencode=arch=compute_61,code=compute_61
 CUDA9_PTX     = -gencode=arch=compute_70,code=compute_70
+CUDA11_PTX    = -gencode=arch=compute_80,code=compute_80
 
+# Include Ampere support if we're using CUDA11 or above
+ifeq ($(shell test "0$(CUDA_MAJOR)" -ge 11; echo $$?),0)
+  NVCC_GENCODE ?= $(CUDA8_GENCODE) $(CUDA9_GENCODE) $(CUDA9_PTX) $(CUDA11_GENCODE) $(CUDA11_PTX)
 # Include Volta support if we're using CUDA9 or above
-ifeq ($(shell test "0$(CUDA_MAJOR)" -gt 8; echo $$?),0)
+else ifeq ($(shell test "0$(CUDA_MAJOR)" -ge 9; echo $$?),0)
   NVCC_GENCODE ?= $(CUDA8_GENCODE) $(CUDA9_GENCODE) $(CUDA9_PTX)
 else
   NVCC_GENCODE ?= $(CUDA8_GENCODE) $(CUDA8_PTX)

projects/rccl/makefiles/version.mk

@@ -1,6 +1,6 @@
 ##### version
 NCCL_MAJOR   := 2
-NCCL_MINOR   := 6
-NCCL_PATCH   := 4
+NCCL_MINOR   := 7
+NCCL_PATCH   := 3
 NCCL_SUFFIX  :=
 PKG_REVISION := 1