tensorflow-1.15.0.patch

diff -Nrup a/third_party/nccl/build_defs.bzl.tpl b/third_party/nccl/build_defs.bzl.tpl
--- a/third_party/nccl/build_defs.bzl.tpl	2019-09-28 05:56:33.000000000 +0800
+++ b/third_party/nccl/build_defs.bzl.tpl	2019-10-04 12:51:56.663973578 +0800
@@ -40,7 +40,7 @@ def _rdc_copts():
     # The global functions can not have a lower register count than the
     # device functions. This is enforced by setting a fixed register count.
     # https://github.com/NVIDIA/nccl/blob/f93fe9bfd94884cec2ba711897222e0df5569a53/makefiles/common.mk#L48
-    maxrregcount = "-maxrregcount=96"
+    maxrregcount = "-maxrregcount=80"
 
     return cuda_default_copts() + select({
         "@local_config_cuda//cuda:using_nvcc": [