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Cpu docker tcmalloc #5969

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merged 3 commits into from
Aug 11, 2023
Merged

Cpu docker tcmalloc #5969

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73b42f5
Enable tcmalloc for cpu container
daniil-sizov Jul 4, 2023
bf8fbe2
Add tcmalloc to the cpu guide
daniil-sizov Jul 21, 2023
469d420
Merge branch 'master' into cpu_docker_tcmalloc
daniil-sizov Jul 24, 2023
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4 changes: 4 additions & 0 deletions docker/Dockerfile.ci_cpu
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Expand Up @@ -13,6 +13,10 @@ RUN bash /install/ubuntu_install_core.sh
COPY install/ubuntu_install_build.sh /install/ubuntu_install_build.sh
RUN bash /install/ubuntu_install_build.sh

# tcmalloc
RUN apt-get install -y libgoogle-perftools4
ENV LD_PRELOAD=/usr/lib/x86_64-linux-gnu/libtcmalloc.so.4:$LD_PRELOAD
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# python
COPY install/ubuntu_install_conda.sh /install/ubuntu_install_conda.sh
RUN bash /install/ubuntu_install_conda.sh
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10 changes: 10 additions & 0 deletions tutorials/cpu/cpu_best_practises.py
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Expand Up @@ -15,6 +15,16 @@
is to turn off hyperthreading.
Turning off the hyper threading feature can be done at BIOS [#f1]_ or operating system level [#f2]_ [#f3]_ .

Alternative memory allocators
---------------------------

Alternative memory allocators, such as *tcmalloc*, might provide significant performance improvements by more efficient memory usage, reducing overhead on unnecessary memory allocations or deallocations. *tcmalloc* uses thread-local caches to reduce overhead on thread synchronization, locks contention by using spinlocks and per-thread arenas respectively and categorizes memory allocations by sizes to reduce overhead on memory fragmentation.

To take advantage of optimizations *tcmalloc* provides, install it on your system (on Ubuntu *tcmalloc* is included in libgoogle-perftools4 package) and add shared library to the LD_PRELOAD environment variable:

.. code-block:: shell

export LD_PRELOAD=/lib/x86_64-linux-gnu/libtcmalloc.so.4:$LD_PRELOAD

OpenMP settings
---------------------------
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