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[OpenMP] LIBOMPTARGET_DEVICE_ARCHITECTURES requires semicolons ()

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If I use commas to delimit architectures in
`LIBOMPTARGET_DEVICE_ARCHITECTURES`, cmake for the runtimes complains:

```
Unknown GPU architecture 'sm_70,sm_80,sm_90'
```

Semicolons are required instead.
This commit is contained in:
Joel E. Denny 2024-09-05 15:51:00 -04:00 committed by GitHub
parent 7b760894f2
commit 54b10555c3
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1 changed files with 4 additions and 4 deletions

8
openmp/docs/SupportAndFAQ.rst

@ -81,9 +81,9 @@ The Cuda SDK is required on the machine that will execute the openmp application
If your build machine is not the target machine or automatic detection of the
available GPUs failed, you should also set:
- ``LIBOMPTARGET_DEVICE_ARCHITECTURES=sm_<xy>,...`` where ``<xy>`` is the numeric
- ``LIBOMPTARGET_DEVICE_ARCHITECTURES='sm_<xy>;...'`` where ``<xy>`` is the numeric
compute capability of your GPU. For instance, set
``LIBOMPTARGET_DEVICE_ARCHITECTURES=sm_70,sm_80`` to target the Nvidia Volta
``LIBOMPTARGET_DEVICE_ARCHITECTURES='sm_70;sm_80'`` to target the Nvidia Volta
and Ampere architectures.
@ -141,9 +141,9 @@ With those libraries installed, then LLVM build and installed, try:
If your build machine is not the target machine or automatic detection of the
available GPUs failed, you should also set:
- ``LIBOMPTARGET_DEVICE_ARCHITECTURES=gfx<xyz>,...`` where ``<xyz>`` is the
- ``LIBOMPTARGET_DEVICE_ARCHITECTURES='gfx<xyz>;...'`` where ``<xyz>`` is the
shader core instruction set architecture. For instance, set
``LIBOMPTARGET_DEVICE_ARCHITECTURES=gfx906,gfx90a`` to target AMD GCN5
``LIBOMPTARGET_DEVICE_ARCHITECTURES='gfx906;gfx90a'`` to target AMD GCN5
and CDNA2 devices.
Q: What are the known limitations of OpenMP AMDGPU offload?