diff options
| author |  A. Unique TensorFlower <gardener@tensorflow.org> | 2018-07-09 15:39:12 -0700 |
|---|---|---|
| committer | TensorFlower Gardener <gardener@tensorflow.org> | 2018-07-09 15:42:52 -0700 |
| commit | 3eb314bbcdc6e850eefc21c7ecbd91e28bd04a70 (patch) | |
| tree | 1779e38d458b57b04aaa1cb884716c6db4245a78 /third_party/gpus | |
| parent | 7e02e69e138511065df9bfc51542f411db2bd298 (diff) | |
Fix NVVM libdevice detection in open source build with CUDA 8.
Fixes #17801.
PiperOrigin-RevId: 203843362
Diffstat (limited to 'third_party/gpus')
| -rw-r--r-- | third_party/gpus/cuda_configure.bzl | 20 |
1 files changed, 15 insertions, 5 deletions
diff --git a/third_party/gpus/cuda_configure.bzl b/third_party/gpus/cuda_configure.bzl index c90c66912d..de87d96785 100644 --- a/third_party/gpus/cuda_configure.bzl +++ b/third_party/gpus/cuda_configure.bzl @@ -96,6 +96,16 @@ NVVM_LIBDEVICE_PATHS = [ "share/cuda/", ] +# Files used to detect the NVVM libdevice path. +NVVM_LIBDEVICE_FILES = [ + # CUDA 9.0 has a single file. + "libdevice.10.bc", + + # CUDA 8.0 has separate files for compute versions 2.0, 3.0, 3.5 and 5.0. + # Probing for one of them is sufficient. + "libdevice.compute_20.10.bc", +] + load("//third_party/clang_toolchain:download_clang.bzl", "download_clang") # TODO(dzc): Once these functions have been factored out of Bazel's @@ -718,11 +728,11 @@ def _find_nvvm_libdevice_dir(repository_ctx, cuda_config): The path of the directory containing the CUDA headers. """ cuda_toolkit_path = cuda_config.cuda_toolkit_path - for relative_path in NVVM_LIBDEVICE_PATHS: - if repository_ctx.path("%s/%slibdevice.10.bc" % (cuda_toolkit_path, relative_path)).exists: - return ("%s/%s" % (cuda_toolkit_path, relative_path))[:-1] - auto_configure_fail("Cannot find libdevice.10.bc under %s" % cuda_toolkit_path) - + for libdevice_file in NVVM_LIBDEVICE_FILES: + for relative_path in NVVM_LIBDEVICE_PATHS: + if repository_ctx.path("%s/%s%s" % (cuda_toolkit_path, relative_path, libdevice_file)).exists: + return ("%s/%s" % (cuda_toolkit_path, relative_path))[:-1] + auto_configure_fail("Cannot find libdevice*.bc files under %s" % cuda_toolkit_path) def _cudart_static_linkopt(cpu_value): """Returns additional platform-specific linkopts for cudart.""" |