Commit Graph

11 Commits

Author SHA1 Message Date
Jonas Hahnfeld a349d4820c [libomptarget] Check for library with CUDA Driver API
That's what we really need to link the CUDA plugin against,
not the CUDA runtime API in CUDA_LIBRARIES! While the latter
comes with the CUDA SDK, the Driver API is installed with
the kernel driver and there is at most one per system. As
fallback we can use the stubs library distributed with the
CUDA SDK for linking.

Differential Revision: https://reviews.llvm.org/D42643

llvm-svn: 323787
2018-01-30 16:49:13 +00:00
Jonas Hahnfeld c189523529 [libomptarget] Only use CUDA Driver API
Use equivalents for the last calls to the Runtime API. Remove
stray assert in case of an error found during review, we should
only return OFFLOAD_FAIL.

Differential Revision: https://reviews.llvm.org/D42686

llvm-svn: 323786
2018-01-30 16:49:06 +00:00
Jonas Hahnfeld 5af381acad [CMake] Refactor common settings and flags
These are needed by both libraries, so we can do that in a
common namespace and unify configuration parameters.
Also make sure that the user isn't requesting libomptarget
if the library cannot be built on the system. Issue an error
in that case.

Differential Revision: https://reviews.llvm.org/D40081

llvm-svn: 319342
2017-11-29 19:31:48 +00:00
Sergey Dmitriev b305d26b57 [OpenMP] libomptarget: move debugging dumps under control of env var LIBOMPTARGET_DEBUG
Disable default debugging dumps for libomptarget and plugins and move dumps
under control of environment variable LIBOMPTARGET_DEBUG=<integer>. Dumps
are enabled when LIBOMPTARGET_DEBUG is set to a positive integer value.

Debugging dumps are available only in debug build; release build does not
support it.

Differential Revision: https://reviews.llvm.org/D33227

llvm-svn: 310841
2017-08-14 15:09:59 +00:00
George Rokos 0e86bfb5bb [OpenMP] libomptarget: eliminate compiler warnings at build
Thanks to Sergey Dmitriev for submitting the patch.

Differential Revision: https://reviews.llvm.org/D33851

llvm-svn: 304601
2017-06-02 22:41:35 +00:00
George Rokos 1546d31924 [OpenMP] Changes in the plugin interface
This patch chagnes the plugin interface so that:
1) future plugins can take advantage of systems with shared CPU/device storage
2) instead of using base addresses, target regions are launched by providing target addresseds and base offsets explicitly.

Differential revision: https://reviews.llvm.org/D33028
 

llvm-svn: 302663
2017-05-10 14:12:36 +00:00
George Rokos c13df8e5e0 [OpenMP] Optimized default kernel launch parameters in CUDA plugin
Differential Revision: https://reviews.llvm.org/D32321

llvm-svn: 301321
2017-04-25 16:34:13 +00:00
George Rokos 01954092d0 [OpenMP] CUDA plugin: More descriptive error messages
Differential Revision: https://reviews.llvm.org/D31206

llvm-svn: 298527
2017-03-22 17:36:22 +00:00
George Rokos f3fe2dd235 [OpenMP] CUDA plugin: add include directory for libelf
Allow the user to manually specify where libelf is installed.

Differential Revision: https://reviews.llvm.org/D31207

llvm-svn: 298515
2017-03-22 16:41:46 +00:00
Paul Osmialowski 1e254c5295 Add AArch64 support.
This adds AArch64 support to recently added part of the runtime responsible for offloading to target. This piece of code allows offloading-to-self on AArch64 machines.

Differential Revision: https://reviews.llvm.org/D30644

llvm-svn: 297070
2017-03-06 21:00:07 +00:00
George Rokos 3de4cd1281 [OpenMP] Initial implementation of OpenMP offloading library - libomptarget plugins.
This is the patch upstreaming the plugins part of libomptarget (CUDA, generic-elf-64).

Differential Revision: https://reviews.llvm.org/D14253

llvm-svn: 293724
2017-02-01 00:14:41 +00:00