9df70d95eb
* Rename bigdl/llm to ipex_llm * rm python/llm/src/bigdl * from bigdl.llm to from ipex_llm
87 lines
2.2 KiB
Python
87 lines
2.2 KiB
Python
#
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# Copyright 2016 The BigDL Authors.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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#
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from cpuinfo import CPUID
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class ISAChecker:
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def __init__(self):
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cpuid = CPUID()
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self.flags = cpuid.get_flags(cpuid.get_max_extension_support())
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if self._avx_vnni(cpuid):
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self.flags.append('avxvnni')
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def _avx_vnni(self, cpuid):
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eax = cpuid._run_asm(
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b"\xB9\x01\x00\x00\x00", # mov ecx, 0x1
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b"\xB8\x07\x00\x00\x00", # mov eax, 0x7
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b"\x0f\xa2", # cpuid
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b"\xC3" # ret
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)
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return ((0x10) & eax) != 0
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def check_avx(self):
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return 'avx' in self.flags
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def check_avx2(self):
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return 'avx2' in self.flags
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def check_avx_vnni(self):
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return 'avxvnni' in self.flags
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def check_avx512(self):
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return 'avx512f' in self.flags and \
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'avx512bw' in self.flags and \
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'avx512cd' in self.flags and \
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'avx512dq' in self.flags and \
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'avx512vl' in self.flags
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def check_avx512_vnni(self):
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return 'avx512vnni' in self.flags
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isa_checker = ISAChecker()
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def check_avx():
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return isa_checker.check_avx()
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def check_avx2():
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return isa_checker.check_avx2()
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def check_avx_vnni():
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return isa_checker.check_avx_vnni() and isa_checker.check_avx2()
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def check_avx512():
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return isa_checker.check_avx512()
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def check_avx512_vnni():
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return isa_checker.check_avx512_vnni() and isa_checker.check_avx512()
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def is_server():
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return check_avx512_vnni()
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# todo: use cpuid to check SPR
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# note: now only SPR supports both avxvnni and avx512vnni
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def is_spr():
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return check_avx_vnni() and check_avx512_vnni()
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