From ed401cc29bede009c9a3227fdc6171604a177c83 Mon Sep 17 00:00:00 2001
From: jiakai <jia.kai66@gmail.com>
Date: Fri, 19 Aug 2016 18:55:41 +0800
Subject: [PATCH 1/2] link library with -lrt; otherwise there is undefined
 reference to shm_open

---
 Makefile | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Makefile b/Makefile
index 36bd170..0b675bd 100644
--- a/Makefile
+++ b/Makefile
@@ -44,7 +44,7 @@ NVCC_GENCODE ?= -gencode=arch=compute_35,code=sm_35 \
 CXXFLAGS   := -I$(CUDA_INC) -fPIC -fvisibility=hidden
 NVCUFLAGS  := -ccbin $(CXX) $(NVCC_GENCODE) -lineinfo -std=c++11 -maxrregcount 96
 # Use addprefix so that we can specify more than one path
-LDFLAGS    := $(addprefix -L,${CUDA_LIB}) -lcudart
+LDFLAGS    := $(addprefix -L,${CUDA_LIB}) -lcudart -lrt
 
 ifeq ($(DEBUG), 0)
 NVCUFLAGS += -O3

From 47b0797fe1f1b00cf2edfe449ac59370eea45032 Mon Sep 17 00:00:00 2001
From: jiakai <jia.kai66@gmail.com>
Date: Fri, 19 Aug 2016 19:00:14 +0800
Subject: [PATCH 2/2] pass devlist as const int* rather than int* in
 ncclCommInitAll

---
 src/core.cu | 2 +-
 src/nccl.h  | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/core.cu b/src/core.cu
index f3d1462..ac0d65f 100644
--- a/src/core.cu
+++ b/src/core.cu
@@ -750,7 +750,7 @@ ncclResult_t ncclCommInitRank(ncclComm_t* newcomm, int ndev, ncclUniqueId commId
 }
 
 extern "C" DSOGLOBAL
-ncclResult_t ncclCommInitAll(ncclComm_t* comms, int ndev, int* devlist) {
+ncclResult_t ncclCommInitAll(ncclComm_t* comms, int ndev, const int* devlist) {
   initDebug();
 
   showVersion();
diff --git a/src/nccl.h b/src/nccl.h
index a0a71fc..47bbdd8 100644
--- a/src/nccl.h
+++ b/src/nccl.h
@@ -85,7 +85,7 @@ ncclResult_t ncclCommInitRank(ncclComm_t* comm, int ndev, ncclUniqueId commId, i
  * comm should be pre-allocated with size at least ndev*sizeof(ncclComm_t).
  * If devlist is NULL, the first ndev CUDA devices are used.
  * Order of devlist defines user-order of processors within the communicator. */
-ncclResult_t ncclCommInitAll(ncclComm_t* comm, int ndev, int* devlist);
+ncclResult_t ncclCommInitAll(ncclComm_t* comm, int ndev, const int* devlist);
 
 /* Frees resources associated with communicator object. */
 void ncclCommDestroy(ncclComm_t comm);