CPUID and NFD support: AVX_VNNI about cpuid HOT 9 CLOSED

Thank you for this fix.

A good day.

from cpuid.

AVX512VNNI is detected. However, your CPU does not appear to enable this, or it isn't picked up.

Could you post the output from running the latest release binary?

from cpuid.

I do not believe a non-avx512 version of this exists.

from cpuid.

I need to reopen this ticket.

For ADL using cpuid-Linux_x86_64_2.0.14.tar.gz:

./cpuid
Name: 12th Gen Intel(R) Core(TM) i7-12800HE
Vendor String: GenuineIntel
Vendor ID: Intel
PhysicalCores: 20
Threads Per Core: 1
Logical Cores: 20
CPU Family 6 Model: 154
Features: ADX,AESNI,AVX,AVX2,BMI1,BMI2,CETIBT,CETSS,CLMUL,CMOV,CMPXCHG8,CX16,ERMS,F16C,FMA3,FXSR,FXSROPT,IBPB,LAHF,LZCNT,MMX,MMXEXT,MOVBE,MOVDIR64B,MOVDIRI,NX,OSXSAVE,PCONFIG,POPCNT,RDRAND,RDSEED,RDTSCP,SCE,SERIALIZE,SHA,SSE,SSE2,SSE3,SSE4,SSE42,SSSE3,STIBP,TME,VMX,WAITPKG,X87,XGETBV1,XSAVE,XSAVEC,XSAVEOPT,XSAVES
Microarchitecture level: 3
Cacheline bytes: 64
L1 Instruction Cache: 65536 bytes
L1 Data Cache: 32768 bytes
L2 Cache: 2097152 bytes
L3 Cache: 25165824 bytes
Frequency: 2600000000 Hz
Boost Frequency: 3500000000 Hz

CPUID LINUX: cpuid-linux-binary.txt

AVX-VNNI: AVX VNNI neural network instrs = true

AVX512 is not supported on this CPU. But AVX-VNNI is supported.

from cpuid.

@ionutnechita Why? Your CPU or OS does not support AVX512, so VNNI cannot be used. there is only avx512 vnni.

from cpuid.

And with this referrence: https://en.wikipedia.org/wiki/Alder_Lake

AVX-VNNI, a VEX-coded variant of AVX512-VNNI for 256-bit vectors

from cpuid.

I think is necessary to reopen this ticket and review my file: cpuid-linux-binary.txt.

A good day.

from cpuid.

Added in #110

from cpuid.

It's fine now:

Name: 12th Gen Intel(R) Core(TM) i9-12900E
Vendor String: GenuineIntel
Vendor ID: Intel
PhysicalCores: 12
Threads Per Core: 2
Logical Cores: 24
CPU Family 6 Model: 151
Features: ADX,AESNI,AVX,AVX2,AVXVNNI,BMI1,BMI2,CETIBT,CETSS,CLMUL,CMOV,CMPXCHG8,CX16,ERMS,F16C,FMA3,FXSR,FXSROPT,GFNI,HRESET,HTT,IBPB,LAHF,LZCNT,MMX,MMXEXT,MOVBE,MOVDIR64B,MOVDIRI,NX,OSXSAVE,PCONFIG,POPCNT,RDRAND,RDSEED,RDTSCP,SCE,SERIALIZE,SHA,SSE,SSE2,SSE3,SSE4,SSE42,SSSE3,STIBP,STOSB_SHORT,TME,VAES,VMX,VPCLMULQDQ,WAITPKG,X87,XGETBV1,XSAVE,XSAVEC,XSAVEOPT,XSAVES
Microarchitecture level: 3
Cacheline bytes: 64
L1 Instruction Cache: 32768 bytes
L1 Data Cache: 49152 bytes
L2 Cache: 1310720 bytes
L3 Cache: 31457280 bytes
Frequency: 2300000000 Hz
Boost Frequency: 5000000000 Hz

from cpuid.