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| author | Tobias Burnus <tburnus@baylibre.com> | 2025-04-17 10:21:05 +0200 |
|---|---|---|
| committer | Andrew Stubbs <ams@baylibre.com> | 2025-04-28 14:39:13 +0000 |
| commit | fd91f571f6e986f84f09f35139ff0650caa669d6 (patch) | |
| tree | 596d9525939b6197ad805e935e9db6decef221e3 | |
| parent | 0572eb1918b4de3a27a24cf0a21c9b71aea7c5f7 (diff) | |
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libgomp.texi: For HIP interop, mention cpp defines to set
The HIP header files recognize the used compiler, defaulting to either AMD
or Nvidia/CUDA; thus, the alternative way of explicitly defining a macro is
less prominently documented. With GCC, the user has to define the
preprocessor macro manually. Hence, as a service to the user, mention
__HIP_PLATFORM_AMD__ and __HIP_PLATFORM_NVIDIA__ in the interop documentation,
even though it has only indirectly to do with GCC and its interop support.
Note to commit-log readers, only: For Fortran, the hipfort modules can be
used; when compiling the hipfort package (defaults to use gfortran), it
generates the module (*.mod) files in include/hipfort/{amdgcn,nvidia}/ such
that the choice is made by setting the respective include path.
libgomp/ChangeLog:
* libgomp.texi (gcn interop, nvptx interop): For HIP with C/C++, add
a note about setting a preprocessor define.
(cherry picked from commit 4bff3f0b89af9a9aad69b8f85859c0a3667533ae)
| -rw-r--r-- | libgomp/libgomp.texi | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/libgomp/libgomp.texi b/libgomp/libgomp.texi index 42dabfc..32d6514 100644 --- a/libgomp/libgomp.texi +++ b/libgomp/libgomp.texi @@ -6828,6 +6828,9 @@ or string (str) data type, call @code{omp_get_interop_int}, Note that @code{device_num} is the OpenMP device number while @code{device} is the HIP device number or HSA device handle. +When using HIP with C and C++, the @code{__HIP_PLATFORM_AMD__} preprocessor +macro must be defined before including the HIP header files. + For the API routine call, add the prefix @code{omp_ipr_} to the property name; for instance: @smallexample @@ -6990,6 +6993,9 @@ or string (str) data type, call @code{omp_get_interop_int}, Note that @code{device_num} is the OpenMP device number while @code{device} is the CUDA, CUDA Driver, or HIP device number. +When using HIP with C and C++, the @code{__HIP_PLATFORM_NVIDIA__} preprocessor +macro must be defined before including the HIP header files. + For the API routine call, add the prefix @code{omp_ipr_} to the property name; for instance: @smallexample |