| commit | 29ba77b8483f803766806b4f6987aeeef00747e5 | |
| author | Szilárd Páll <pall.szilard@gmail.com> | |
| Mon, 16 Oct 2017 15:40:23 +0000 (16 17:40 +0200) | ||
| committer | Mark Abraham <mark.j.abraham@gmail.com> | |
| Tue, 31 Oct 2017 19:19:09 +0000 (31 20:19 +0100) | ||
| tree | 824d8991aef232f4774198026e575094146bdad6 | treesnapshot (tar.gz zip) |
| parent | 48620e5ef3e62b43ed618e9ceb1f49d4bf41913b | commitdiff |
Check CUDA available/compiled code compatibility
Added an early check to detect when the gmx binary does not embed code
compatible with the GPU device it tries to use nor does it have PTX that
could have been JIT-ed.
Additionally, if the user manually sets GMX_CUDA_TARGET_COMPUTE=20 and
no later SM or COMPUTE but runs on >2.0 hardware, we'd be executing
JIT-ed Fermi kernels with incorrect host-side code assumptions
(e.g amount of shared memory allocated or texture type).
This change also prevents such cases.
Fixes #2273
Change-Id: I5472b1a33e584a75f451e21e9fd25992633fbea9
Added an early check to detect when the gmx binary does not embed code
compatible with the GPU device it tries to use nor does it have PTX that
could have been JIT-ed.
Additionally, if the user manually sets GMX_CUDA_TARGET_COMPUTE=20 and
no later SM or COMPUTE but runs on >2.0 hardware, we'd be executing
JIT-ed Fermi kernels with incorrect host-side code assumptions
(e.g amount of shared memory allocated or texture type).
This change also prevents such cases.
Fixes #2273
Change-Id: I5472b1a33e584a75f451e21e9fd25992633fbea9
| src/gromacs/gpu_utils/gpu_utils.cu | diffblobblamehistory |