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Tests: amrex.the_arena_init_size=0 #430

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@ax3l ax3l commented Mar 20, 2025

amrex.the_arena_init_size=0 is default on CPU but not GPU. In order to run tests in parallel on the same GPU, we need to change the default so the first test does not allocate 3/4th of the memory of the GPU (to speed up later allocations in a pre-allocated heap).

`amrex.the_arena_init_size=0` is default on CPU but not GPU.
In order to run tests in parallel on the same GPU, we need
to change the default so the first test does not allocate
3/4th of the memory of the GPU (to speed up later allocations
in a pre-allocated heap).
@ax3l ax3l added backend: cuda Specific to CUDA execution (GPUs) component: tests tests and examples backend: sycl Specific to DPC++/SYCL execution (CPUs/GPUs) backend: hip Specific to ROCm execution (GPUs) labels Mar 20, 2025
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