Merge pull request #9541 from helinwang/nccl_test

temporarily disable ncclBcastOp test, it fails randomly

paddle/fluid/operators/nccl_op_test.cu.cc

@@ -137,6 +137,8 @@ class NCCLTester : public ::testing::Test {
 TEST_F(NCCLTester, ncclInitOp) {}
 
 // ncclAllReduceOp with desc
+// TODO(helin): https://github.com/PaddlePaddle/Paddle/issues/9367
+/*
 TEST_F(NCCLTester, ncclAllReduceOp) {
   std::unique_ptr<f::OpDesc> op2(new f::OpDesc);
   op2->SetType("ncclAllReduce");
@@ -184,6 +186,7 @@ TEST_F(NCCLTester, ncclAllReduceOp) {
     }
   }
 }
+*/
 
 // ncclReduceOp with desc
 TEST_F(NCCLTester, ncclReduceOp) {
@@ -236,6 +239,8 @@ TEST_F(NCCLTester, ncclReduceOp) {
 }
 
 // ncclBcastOp with desc
+// TODO(helin): https://github.com/PaddlePaddle/Paddle/issues/9540
+/*
 TEST_F(NCCLTester, ncclBcastOp) {
   std::unique_ptr<f::OpDesc> op2(new f::OpDesc);
   const int kRoot = 0;
@@ -281,3 +286,4 @@ TEST_F(NCCLTester, ncclBcastOp) {
     ASSERT_NEAR(ct[j], result, 1e-5);
   }
 }
+*/