Comments (3)
Our benchmark folder has now speed test results from before no_or_const_delay_mode
implementation, after and with additional profiling_info collected using cudaEvents
.
I have until now only benchmarked against CPPStandaloneConfiguration
and GeNNConifguration
. But there are also CPPStandaloneConfigurationOpenMP
and GeNNConfigurationOptimized
.
@moritzaugustin Do we want to benchmark agains OpenMP as well?
@mstimberg Did you experience any "optimization" in the GeNNConfigurationOptimized
? I did run that when I first ran the speed tests but could not see any performance difference to GeNNConfiguration
and the brian2genn benchmarkfolder does not seem to have used it either. So can we just us GeNNConfiguration
?
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@mstimberg Did you experience any "optimization" in the GeNNConfigurationOptimized? I did run that when I first ran the speed tests but could not see any performance difference to GeNNConfiguration and the brian2genn benchmarkfolder does not seem to have used it either. So can we just us GeNNConfiguration?
This is a bit misleading, I agree. The only difference between the two configurations is that GeNNConfiguration
switches off the default compiler args that we normally pass to gcc
(-w -O3 -ffast-math -fno-finite-math-only -march=native
). This only affects the host code that is run on the CPU and I don't think any of the benchmarks spends any significant time in this code, so I don't expect it to have a measurable effect on performance. However, I'd probably just use GeNNConfigurationOptimized
instead of GeNNConfiguration
, simply because the "optimized" configuration uses the defaults (i.e. what a user would get if they don't change any preferences).
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We have benchmarking scripts implemented for a while now. Closing this issue.
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Related Issues (20)
- Call reset kernel only with as many threads as there are spiking neurons (not as there are neurons in total)
- Refactor benchmarking scripts and update generated plots
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- Optimize `StateMonitor`
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- Consider partitioning eventspaces when using `Subgroup`s HOT 4
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- Fix `ReferencError` in spatialneuron tests HOT 3
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- Recent Brian2 update PR broke benchmark scripts HOT 1
- Brian2Cuda Uninstalls Brian2 2.5.1 and Installs 2.4.2 Which Won't Import HOT 3
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