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Clarify the description of the x86-64-vnni256 and x86-64-avxvnni architectures

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Now it is clearly explained that "x86-64-vnni256" requires full
support of AVX512-VNNI, but only 256-bit operands are used.

closes https://github.com/official-stockfish/Stockfish/pull/4427

No functional change
This commit is contained in:
Maxim Masiutin
2023-03-05 17:10:52 +02:00
committed by Joost VandeVondele
parent cdec775a15
commit 70dfa141d5
2 changed files with 5 additions and 4 deletions
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AUTHORS
+1
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@@ -134,6 +134,7 @@ Matt Ginsberg (mattginsberg)
Matthew Lai (matthewlai) Matthew Lai (matthewlai)
Matthew Sullivan (Matt14916) Matthew Sullivan (Matt14916)
Max A. (Disservin) Max A. (Disservin)
Maxim Masiutin (maximmasiutin)
Maxim Molchanov (Maxim) Maxim Molchanov (Maxim)
Michael An (man) Michael An (man)
Michael Byrne (MichaelB7) Michael Byrne (MichaelB7)
src/Makefile
+4 -4
View File
@@ -92,7 +92,7 @@ VPATH = syzygy:nnue:nnue/features
# avx2 = yes/no --- -mavx2 --- Use Intel Advanced Vector Extensions 2 # avx2 = yes/no --- -mavx2 --- Use Intel Advanced Vector Extensions 2
# avxvnni = yes/no --- -mavxvnni --- Use Intel Vector Neural Network Instructions AVX # avxvnni = yes/no --- -mavxvnni --- Use Intel Vector Neural Network Instructions AVX
# avx512 = yes/no --- -mavx512bw --- Use Intel Advanced Vector Extensions 512 # avx512 = yes/no --- -mavx512bw --- Use Intel Advanced Vector Extensions 512
# vnni256 = yes/no --- -mavx512vnni --- Use Intel Vector Neural Network Instructions 256 # vnni256 = yes/no --- -mavx256vnni --- Use Intel Vector Neural Network Instructions 512 with 256bit operands
# vnni512 = yes/no --- -mavx512vnni --- Use Intel Vector Neural Network Instructions 512 # vnni512 = yes/no --- -mavx512vnni --- Use Intel Vector Neural Network Instructions 512
# neon = yes/no --- -DUSE_NEON --- Use ARM SIMD architecture # neon = yes/no --- -DUSE_NEON --- Use ARM SIMD architecture
# dotprod = yes/no --- -DUSE_NEON_DOTPROD --- Use ARM advanced SIMD Int8 dot product instructions # dotprod = yes/no --- -DUSE_NEON_DOTPROD --- Use ARM advanced SIMD Int8 dot product instructions
@@ -773,10 +773,10 @@ help:
@echo "" @echo ""
@echo "Supported archs:" @echo "Supported archs:"
@echo "" @echo ""
@echo "x86-64-vnni512 > x86 64-bit with vnni support 512bit wide" @echo "x86-64-vnni512 > x86 64-bit with vnni 512bit support"
@echo "x86-64-vnni256 > x86 64-bit with vnni support 256bit wide" @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" @echo "x86-64-avx512 > x86 64-bit with avx512 support"
@echo "x86-64-avxvnni > x86 64-bit with avxvnni support" @echo "x86-64-avxvnni > x86 64-bit with vnni 256bit support"
@echo "x86-64-bmi2 > x86 64-bit with bmi2 support" @echo "x86-64-bmi2 > x86 64-bit with bmi2 support"
@echo "x86-64-avx2 > x86 64-bit with avx2 support" @echo "x86-64-avx2 > x86 64-bit with avx2 support"
@echo "x86-64-sse41-popcnt > x86 64-bit with sse41 and popcnt support" @echo "x86-64-sse41-popcnt > x86 64-bit with sse41 and popcnt support"