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Those TR13/OpenMP 6.0 routines permit a reproducible offloading to a specific device by mapping an OpenMP device number to a unique ID (UID). The GPU device UIDs should be universally unique, the one for the host is not. gcc/ChangeLog: * omp-general.cc (omp_runtime_api_procname): Add get_device_from_uid and omp_get_uid_from_device routines. include/ChangeLog: * cuda/cuda.h (cuDeviceGetUuid): Declare. (cuDeviceGetUuid_v2): Add prototype. libgomp/ChangeLog: * config/gcn/target.c (omp_get_uid_from_device, omp_get_device_from_uid): Add stub implementation. * config/nvptx/target.c (omp_get_uid_from_device, omp_get_device_from_uid): Likewise. * fortran.c (omp_get_uid_from_device_, omp_get_uid_from_device_8_): New functions. * libgomp-plugin.h (GOMP_OFFLOAD_get_uid): Add prototype. * libgomp.h (struct gomp_device_descr): Add 'uid' and 'get_uid_func'. * libgomp.map (GOMP_6.0): New, includind the new UID routines. * libgomp.texi (OpenMP Technical Report 13): Mark UID routines as 'Y'. (Device Information Routines): Document new UID routines. (Offload-Target Specifics): Document UID format. * omp.h.in (omp_get_device_from_uid, omp_get_uid_from_device): New prototype. * omp_lib.f90.in (omp_get_device_from_uid, omp_get_uid_from_device): New interface. * omp_lib.h.in: Likewise. * plugin/cuda-lib.def: Add cuDeviceGetUuid and cuDeviceGetUuid_v2 via CUDA_ONE_CALL_MAYBE_NULL. * plugin/plugin-gcn.c (GOMP_OFFLOAD_get_uid): New. * plugin/plugin-nvptx.c (GOMP_OFFLOAD_get_uid): New. * target.c (str_omp_initial_device): New static var. (STR_OMP_DEV_PREFIX): Define. (gomp_get_uid_for_device, omp_get_uid_from_device, omp_get_device_from_uid): New. (gomp_load_plugin_for_device): DLSYM_OPT the function 'get_uid'. (gomp_target_init): Set the device's 'uid' field to NULL. * testsuite/libgomp.c/device_uid.c: New test. * testsuite/libgomp.fortran/device_uid.f90: New test. |
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| .. | ||
| cuda | ||
| gdb | ||
| ansidecl.h | ||
| btf.h | ||
| ChangeLog | ||
| ChangeLog-9103 | ||
| ChangeLog.jit | ||
| collectorAPI.h | ||
| COPYING | ||
| COPYING3 | ||
| ctf.h | ||
| demangle.h | ||
| dwarf2.def | ||
| dwarf2.h | ||
| dyn-string.h | ||
| environ.h | ||
| fibheap.h | ||
| filenames.h | ||
| floatformat.h | ||
| fnmatch.h | ||
| gcc-c-fe.def | ||
| gcc-c-interface.h | ||
| gcc-cp-fe.def | ||
| gcc-cp-interface.h | ||
| gcc-interface.h | ||
| getopt.h | ||
| gomp-constants.h | ||
| hashtab.h | ||
| hsa_ext_amd.h | ||
| hsa_ext_image.h | ||
| hsa.h | ||
| leb128.h | ||
| libcollector.h | ||
| libfcollector.h | ||
| libiberty.h | ||
| longlong.h | ||
| lto-symtab.h | ||
| md5.h | ||
| objalloc.h | ||
| obstack.h | ||
| partition.h | ||
| plugin-api.h | ||
| safe-ctype.h | ||
| sha1.h | ||
| simple-object.h | ||
| sort.h | ||
| spincount.h | ||
| splay-tree.h | ||
| symcat.h | ||
| timeval-utils.h | ||
| vtv-change-permission.h | ||
| xregex2.h | ||
| xregex.h | ||
| xtensa-config.h | ||
| xtensa-dynconfig.h | ||