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Update 'Quda/Readme.md'

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Simon Bürger 2023-06-09 18:20:50 +01:00
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Quda/Readme.md
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@ -22,4 +22,9 @@ mpirun -np <ranks> <env_dir>/prefix/qudabench/Benchmark_Quda
``` ```
where `<ranks>` is the total number of GPU's to use. On Tursa this is 4 times the number of nodes. where `<ranks>` is the total number of GPU's to use. On Tursa this is 4 times the number of nodes.
Note: on Tursa, the `wrapper.sh` script that is typically used with Grid is not necessary. Note:
- on Tursa, the `wrapper.sh` script that is typically used with Grid is not necessary.
- due to Qudas automatic tuning, the benchmark might take significantly longer to run than `Benchmark_Grid` (even though it does fewer things).
- setting `QUDA_ENABLE_TUNING=0` disables all tuning (degrades performance severely). By default, it is turned on.
- setting `QUDA_RESOURCE_PATH=<some folder>` enables Quda to save and reuse optimal tuning parameters, making repeated runs much faster