https://bugs.kde.org/show_bug.cgi?id=383010
--- Comment #51 from Tanya <tatyana.a.mine...@intel.com> --- Hello, Attached updated AVX-512 patch for KNL and SkyLake. It is based on the GIT master from Feb. 20 (commit 1c9a0bf58a47e855e6e5bf78a30bcee0af835804) Attached files ~~~~~~~~~~~~~~ - AVX-512_KNL_SKX_p1_main.patch - Main AVX-512 Valgrind patch - AVX-512_KNL_SKX_p2_data.patch - Files, automatically generated by a script. These files are required for the build - AVX-512_KNL_SKX_p3_test.patch - AVX-512 regression tests - AVX-512_KNL_SKX_p4_filegen.patch - Generator of Valgrind AVX-512 .c files from a file with instruction descriptions. Not required for build or usage; useful for adding new instructions or modifying AVX-512 behaviour Functionality ~~~~~~~~~~~~~ - No known regressions on AVX2 machines - Nulgrind is functional (no known failures of small AVX-512 applications) on KNL and SkyLake - Memcheck does not crash on AVX-512 code; the analysis might still be incorrect Limitations ~~~~~~~~~~~ - Needs GCC version 8 or newer - Cannot emulate AVX-512 code on AVX-2 or older machine (some AVX-512 instructions are emulated through intrinsics) Build and test ~~~~~~~~~~~~~~ Clone Valgrind master: > git clone https://sourceware.org/git/valgrind.git > cd valgrind Apply the patch: > git apply AVX-512_KNL_SKX_p1_main.patch > git apply AVX-512_KNL_SKX_p2_data.patch > git apply AVX-512_KNL_SKX_p3_test.patch Optional development tool, not required for the build process: > git apply AVX-512_KNL_SKX_p4_filegen.patch Build: Please check that GCC version is 8 or higher. > ./autogen.sh > ./configure --prefix=<install-path> On AVX-512 machine, verify that AVX-512 version will be built: open config.log and check that "BUILD_AVX512_TESTS_TRUE=''" and "CFLAGS=' -DAVX_512'" lines exist. > make install Quick test: <install-path>/bin/valgrind ls Invoke a script to generate reference AVX-512 tests results (they are not provided with the patch because file size exceeds limit set by bugtracker): > ./scripts/generate_test_results.sh Run regression tests: > make regtest -- You are receiving this mail because: You are watching all bug changes.
