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Enable a default native ARCH

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uses a posix compatible script to find the native arch.
(based on ppigazzini's https://github.com/ppigazzini/stockfish-downloader )
use that native arch by default, no changes if ARCH is specified explicitly.

SF can now be compiled in an optimal way simply using

make -j profile-build

closes https://github.com/official-stockfish/Stockfish/pull/4777

No functional change
This commit is contained in:
Joost VandeVondele
2023-08-26 11:38:16 +02:00
parent 97f706ecc1
commit 708319a433
2 changed files with 130 additions and 9 deletions
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18
src/Makefile
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@@ -104,9 +104,13 @@ VPATH = syzygy:nnue:nnue/features
### 2.1. General and architecture defaults
ifeq ($(ARCH),)
ARCH = x86-64-avx2
help_skip_sanity = yes
ARCH = native
endif
ifeq ($(ARCH), native)
override ARCH = $(shell ../scripts/get_native_properties.sh | cut -d " " -f 1)
endif
# explicitly check for the list of supported architectures (as listed with make help),
# the user can override with `make ARCH=x86-32-vnni256 SUPPORTED_ARCH=true`
ifeq ($(ARCH), $(filter $(ARCH), \
@@ -757,12 +761,11 @@ endif
### Section 4. Public Targets
### ==========================================================================
help:
@echo ""
@echo "To compile stockfish, type: "
@echo ""
@echo "make target ARCH=arch [COMP=compiler] [COMPCXX=cxx]"
@echo "make -j target [ARCH=arch] [COMP=compiler] [COMPCXX=cxx]"
@echo ""
@echo "Supported targets:"
@echo ""
@@ -776,6 +779,7 @@ help:
@echo ""
@echo "Supported archs:"
@echo ""
@echo "native > select the best architecture for the host processor (default)"
@echo "x86-64-vnni512 > x86 64-bit with vnni 512bit support"
@echo "x86-64-vnni256 > x86 64-bit with vnni 512bit support, limit operands to 256bit wide"
@echo "x86-64-avx512 > x86 64-bit with avx512 support"
@@ -822,11 +826,7 @@ help:
@echo "make -j profile-build ARCH=x86-64-avxvnni COMP=gcc COMPCXX=g++-12.0"
@echo "make -j build ARCH=x86-64-ssse3 COMP=clang"
@echo ""
@echo "-------------------------------"
ifeq ($(SUPPORTED_ARCH)$(help_skip_sanity), true)
@echo "The selected architecture $(ARCH) will enable the following configuration: "
@$(MAKE) ARCH=$(ARCH) COMP=$(COMP) config-sanity
else
ifneq ($(SUPPORTED_ARCH), true)
@echo "Specify a supported architecture with the ARCH option for more details"
@echo ""
endif