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Fix zen3 flags for icc and support icelake #321

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merged 3 commits into from
Mar 24, 2022
Merged

Fix zen3 flags for icc and support icelake #321

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569949d
fix mapping zen3 march flags to icc
bernhardmgruber Mar 22, 2022
f1dd9f2
let icc build AVX2 Vc without Intel specifics
bernhardmgruber Mar 23, 2022
e491eda
add support for Intel icelake
bernhardmgruber Mar 22, 2022
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22 changes: 14 additions & 8 deletions cmake/OptimizeForArchitecture.cmake
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Original file line number Diff line number Diff line change
Expand Up @@ -130,16 +130,18 @@ macro(AutodetectHostArchitecture)
# 4E | Skylake Client
# 3C | Broadwell (likely a bug in the SDE)
# 3C | Haswell
if(_cpu_model EQUAL 87) # 57
if(_cpu_model EQUAL 142 OR _cpu_model EQUAL 158) # 8E, 9E
set(TARGET_ARCHITECTURE "kaby-lake")
elseif(_cpu_model EQUAL 106)
set(TARGET_ARCHITECTURE "icelake")
elseif(_cpu_model EQUAL 102)
set(TARGET_ARCHITECTURE "cannonlake")
elseif(_cpu_model EQUAL 87) # 57
set(TARGET_ARCHITECTURE "knl") # Knights Landing
elseif(_cpu_model EQUAL 92)
set(TARGET_ARCHITECTURE "goldmont")
elseif(_cpu_model EQUAL 90 OR _cpu_model EQUAL 76)
set(TARGET_ARCHITECTURE "silvermont")
elseif(_cpu_model EQUAL 102)
set(TARGET_ARCHITECTURE "cannonlake")
elseif(_cpu_model EQUAL 142 OR _cpu_model EQUAL 158) # 8E, 9E
set(TARGET_ARCHITECTURE "kaby-lake")
elseif(_cpu_model EQUAL 85) # 55
set(TARGET_ARCHITECTURE "skylake-avx512")
elseif(_cpu_model EQUAL 78 OR _cpu_model EQUAL 94) # 4E, 5E
Expand Down Expand Up @@ -225,7 +227,7 @@ Using an incorrect setting here can result in crashes of the resulting binary be
Setting the value to \"auto\" will try to optimize for the architecture where cmake is called. \
Other supported values are: \"none\", \"generic\", \"core\", \"merom\" (65nm Core2), \
\"penryn\" (45nm Core2), \"nehalem\", \"westmere\", \"sandy-bridge\", \"ivy-bridge\", \
\"haswell\", \"broadwell\", \"skylake\", \"skylake-xeon\", \"kaby-lake\", \"cannonlake\", \"silvermont\", \
\"haswell\", \"broadwell\", \"skylake\", \"skylake-xeon\", \"kaby-lake\", \"cannonlake\", \"icelake\", \"silvermont\", \
\"goldmont\", \"knl\" (Knights Landing), \"atom\", \"k8\", \"k8-sse3\", \"barcelona\", \
\"istanbul\", \"magny-cours\", \"bulldozer\", \"interlagos\", \"piledriver\", \
\"AMD 14h\", \"AMD 16h\", \"zen\", \"zen3\".")
Expand Down Expand Up @@ -327,6 +329,8 @@ Other supported values are: \"none\", \"generic\", \"core\", \"merom\" (65nm Cor
endif()
elseif(TARGET_ARCHITECTURE STREQUAL "knl")
_knightslanding()
elseif(TARGET_ARCHITECTURE STREQUAL "icelake")
_cannonlake()
elseif(TARGET_ARCHITECTURE STREQUAL "cannonlake")
_cannonlake()
elseif(TARGET_ARCHITECTURE STREQUAL "kaby-lake")
Expand Down Expand Up @@ -509,6 +513,7 @@ Other supported values are: \"none\", \"generic\", \"core\", \"merom\" (65nm Cor
endforeach(_flag)
elseif(CMAKE_CXX_COMPILER MATCHES "/(icpc|icc)$") # ICC (on Linux)
set(OFA_map_knl "-xMIC-AVX512")
set(OFA_map_icelake "-xCORE-AVX512")
set(OFA_map_cannonlake "-xCORE-AVX512")
set(OFA_map_skylake-avx512 "-xCORE-AVX512")
set(OFA_map_skylake "-xCORE-AVX2")
Expand All @@ -521,8 +526,9 @@ Other supported values are: \"none\", \"generic\", \"core\", \"merom\" (65nm Cor
set(OFA_map_penryn "-xSSSE3")
set(OFA_map_merom "-xSSSE3")
set(OFA_map_core2 "-xSSE3")
set(OFA_map_zen3 "-xAVX2")
set(OFA_map_zen "-xAVX2")
set(OFA_map_znver3 "-mavx2") # -xAVX2 does not work and causes this runtime check to appear:
set(OFA_map_znver2 "-mavx2") # Please verify that both the operating system and the processor support Intel(R) X87, CMOV, MMX, FXSAVE, SSE, SSE2, SSE3, SSSE3, SSE4_1, SSE4_2, MOVBE, POPCNT, AVX, F16C, FMA, BMI, LZCNT and AVX2 instructions.
set(OFA_map_znver1 "-mavx2")
set(_ok FALSE)
foreach(arch ${_march_flag_list})
if(DEFINED OFA_map_${arch})
Expand Down
2 changes: 1 addition & 1 deletion cmake/VcMacros.cmake
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Expand Up @@ -495,7 +495,7 @@ macro(vc_compile_for_all_implementations _srcs _src)
# which case AVX2 implies the availability of FMA and BMI2
#_vc_compile_one_implementation(${_srcs} AVX2 "-mavx2")
#_vc_compile_one_implementation(${_srcs} AVX2+BMI2 "-mavx2 -mbmi2")
_vc_compile_one_implementation(${_srcs} AVX2+FMA+BMI2 "-xCORE-AVX2" "-mavx2 -mfma -mbmi2" "/arch:AVX2")
_vc_compile_one_implementation(${_srcs} AVX2+FMA+BMI2 "-xAVX2" "-mavx2 -mfma -mbmi2" "/arch:AVX2")
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Is this used on AMD?

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Yes. And funnily it works. Because the unit tests did not work with -xAVX2, I needed -mavx2. Should we change to -mavx2 here as well?

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Yes, I think that anything that could be run on AMD should fallback to -mavx2 so that the compiler doesn't add special code based on cpuid checks (for example, if may just fallback to scalar if the AMD CPU is not recognized, or even intentionally).

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I will send a separate PR for that.

#_vc_compile_one_implementation(${_srcs} AVX2+FMA "-mavx2 -mfma")
endif()
list(LENGTH _only_targets _len)
Expand Down