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Merged
davidrohr merged 1 commit into from
Jun 4, 2025
Merged

GPU: Add script for standalone build in the CI #14363

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18 changes: 18 additions & 0 deletions GPU/GPUTracking/Standalone/cmake/build.sh
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@@ -0,0 +1,18 @@
#!/bin/bash
if [[ -z $1 ]]; then
echo "Please provide Sourcedir as command line argument"
exit 1
fi
mkdir -p standalone/build
pushd standalone/build
cp $1/GPU/GPUTracking/Standalone/cmake/config.cmake .
cat >> config.cmake << "EOF"
set(ENABLE_CUDA 1)
set(ENABLE_HIP 1)
set(ENABLE_OPENCL 1)
set(GPUCA_CONFIG_ONNX 1)
set(GPUCA_BUILD_EVENT_DISPLAY 0)
EOF
cmake -DCMAKE_INSTALL_PREFIX=../ $1/GPU/GPUTracking/Standalone
make ${JOBS+-j $JOBS} install
popd
2 changes: 2 additions & 0 deletions GPU/documentation/build-standalone.md
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Expand Up @@ -35,6 +35,8 @@ And there are plenty of additional settings to enable/disable event display, qa,

This will create the `ca` binary in `~/standalone`, which is basically the same as the `o2-gpu-standalone-benchmark`, but built outside of O2.

As an exacmple you can also have a look at [build.sh](https://github.com/AliceO2Group/AliceO2/blob/dev/GPU/GPUTracking/Standalone/cmake/build.sh), which is used by the CI.

# Running

The following command lines will use `./ca`, in case you use the executable from the O2 build, please replace by `o2-gpu-standalone-benchmark`.
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1 change: 1 addition & 0 deletions GPU/documentation/deterministic-mode.md
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Expand Up @@ -12,6 +12,7 @@ This is steered by 3 options:
- The `--PROCdeterministicGPUReconstruction` command line option / `GPU_proc.deterministicGPUReconstruction` `--configKeyValue` setting : Run time setting.
- The `--RTCdeterministic` command line option / `GPU_proc_rtc.deterministic` `--configKeyValue` setting. (Auto-enabled by the `deterministicGPUReconstruction` setting.) : Compile-time setting for RTC code.

Note that enabling a single setting will not result in fully deterministic behavior! Each setting enables different deterministic aspects!
In order to be fully deterministic, all settings must be enabled, where the RTC setting is automatically enabled if not explicitly disabled.

`GPUCA_DETERMINISTIC_MODE` has multiple levels, which are described here: [FindO2GPU.cmake](https://github.com/AliceO2Group/AliceO2/blob/80a80a17f5a1d9cb77743e2a39b15b653fe1a4f9/dependencies/FindO2GPU.cmake#L72).
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