Difference between revisions of "RTX2080 Testing"
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All four GPUs are installed in a single node with two Intel Xeon Gold 6140 CPUs (2.3 GHz) and 256 GiB of RAM. | All four GPUs are installed in a single node with two Intel Xeon Gold 6140 CPUs (2.3 GHz) and 256 GiB of RAM. | ||
| + | |||
| + | '''Initially only jobs with a runtime up to 24 hours can use these nodes.''' | ||
==Usage== | ==Usage== | ||
| − | === Any | + | === Any RTX GPU === |
| − | Use the <tt>-R | + | Use the <tt>-R rtx</tt> bsub option to request <em>either</em> of these GPUs: |
| − | bsub -R | + | bsub -R rtx ./my_gpu_program |
| − | === Specific | + | === Specific RTX GPU === |
Due to limitations of the batch system you can not request a specific one of these GPUs. Instead you need to request all four GPUs | Due to limitations of the batch system you can not request a specific one of these GPUs. Instead you need to request all four GPUs | ||
| − | bsub -R | + | bsub -R rtx -R "rusage[ngpus_excl_p=4]" ./my_gpu_program |
| + | |||
| + | and then [https://devblogs.nvidia.com/cuda-pro-tip-control-gpu-visibility-cuda_visible_devices/ programatically select the desired GPU using CUDA]. The first two GPUs are '''2080 Ti'''s while the last two are the '''2080''' non-Tis. | ||
| + | |||
| + | For example to use only two '''RTX 2080 Ti''' GPUs, run: | ||
| + | |||
| + | bsub -R rtx -R "rusage[ngpus_excl_p=4]" "CUDA_VISIBLE_DEVICES=0,1 ./my_gpu_program" | ||
| − | + | To use only two '''RTX 2080''' GPUs, run: | |
| − | bsub -R | + | bsub -R rtx -R "rusage[ngpus_excl_p=4]" "CUDA_VISIBLE_DEVICES=2,3 ./my_gpu_program" |
Latest revision as of 08:41, 30 April 2019
Introduction
We have received four GPUs for evaluation:
- 2 nVidia GeForce RTX 2080 and
- 2 nVidia GeForce RTX 2080 Ti
All four GPUs are installed in a single node with two Intel Xeon Gold 6140 CPUs (2.3 GHz) and 256 GiB of RAM.
Initially only jobs with a runtime up to 24 hours can use these nodes.
Usage
Any RTX GPU
Use the -R rtx bsub option to request either of these GPUs:
bsub -R rtx ./my_gpu_program
Specific RTX GPU
Due to limitations of the batch system you can not request a specific one of these GPUs. Instead you need to request all four GPUs
bsub -R rtx -R "rusage[ngpus_excl_p=4]" ./my_gpu_program
and then programatically select the desired GPU using CUDA. The first two GPUs are 2080 Tis while the last two are the 2080 non-Tis.
For example to use only two RTX 2080 Ti GPUs, run:
bsub -R rtx -R "rusage[ngpus_excl_p=4]" "CUDA_VISIBLE_DEVICES=0,1 ./my_gpu_program"
To use only two RTX 2080 GPUs, run:
bsub -R rtx -R "rusage[ngpus_excl_p=4]" "CUDA_VISIBLE_DEVICES=2,3 ./my_gpu_program"
