Use SIMDe #22
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Use SIMDe #22
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james-d-mitchell
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- created build.hpp for TPUBuild - epu8id and similar are now Epu8.id() - improved doc
mr-c
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Nov 15, 2023
| check_cxx_compiler_flag('-mavx' HPCOMBI_HAVE_FLAG_AVX) | ||
| #check_cxx_compiler_flag('-march=native' HPCOMBI_HAVE_FLAG_NATIVE) | ||
| #check_cxx_compiler_flag('-mavx2' HPCOMBI_HAVE_FLAG_AVX2) | ||
| #check_cxx_compiler_flag('-mavx512bw' HPCOMBI_HAVE_FLAG_AVX512BW) |
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I recommend also checking for -fopenmp-simd and if it is found, adding it and -DSIMDE_ENABLE_OPENMP (generates better autovectorization)
README.md
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| HPCombi was initially designed using the SSE and AVX instruction sets, and did | ||
| not work on machines without these instructions (such as ARM). From v1.0.0 | ||
| HPCombi supports processors with other instruction sets also, via | ||
| [simd-everywhere](https://github.com/simd-everywhere/simde). It might be the | ||
| case that the greatest performance gains are achieved on processors supporting | ||
| the SSE and AVX instruction sets, but the HPCombi benchmarks indicate that | ||
| there are also still signficant gains on other processors too. |
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I usually say SIMDe or SIMD Everywhere (SIMDe).
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This is WIP but I wanted to see if the tests can be run from this branch in the CI.