The Gaudi Framework
master (902e3694)
instructionsetLevel.cpp
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/***********************************************************************************\
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* (c) Copyright 1998-2019 CERN for the benefit of the LHCb and ATLAS collaborations *
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* *
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* This software is distributed under the terms of the Apache version 2 licence, *
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* copied verbatim in the file "LICENSE". *
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* *
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* In applying this licence, CERN does not waive the privileges and immunities *
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* granted to it by virtue of its status as an Intergovernmental Organization *
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* or submit itself to any jurisdiction. *
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\***********************************************************************************/
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/*
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* instructionsetLevel.cpp
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*
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* Created on: Feb 3, 2015
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* Author: Marco Clemencic
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*/
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#include <
GaudiKernel/System.h
>
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#include <iostream>
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#include <string>
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#include <vector>
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int
main
(
int
argc
,
char
*
argv
[] ) {
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// These names are those reported in flags field of /proc/cpuinfo on Linux
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// See arch/x86/include/asm/cpufeature.h
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const
std::vector<std::string>
sets{
// "80386",
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"sse"
,
"sse2"
,
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"sse3"
,
// Note: This is reported by Linux as 'pni'
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"ssse3"
,
"sse4_1"
,
"sse4_2"
,
"avx"
,
"avx2"
,
"avx512f"
,
"avx512vl"
};
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if
(
argc
== 1 ) {
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const
std::size_t
level
=
System::instructionsetLevel
() - 1;
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if
(
level
< sets.size() ) {
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for
(
int
i =
level
; i >= 0; --i ) {
std::cout
<< sets[i] <<
std::endl
; }
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}
else
{
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std::cout
<<
"unknown instruction set level: "
<<
level
<<
std::endl
;
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return
2;
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}
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}
else
if
( (
argc
== 2 ) && (
std::string
{
"all"
} ==
std::string
{
argv
[1] } ) ) {
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for
(
auto
&
s
: sets )
std::cout
<<
s
<<
std::endl
;
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}
else
{
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std::cout
<<
"Error: wrong arguments\nUsage:\n\t"
<<
argv
[0] <<
" [all]"
<<
std::endl
;
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return
1;
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}
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return
0;
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}
std::string
STL class.
System.h
plotBacklogPyRoot.argc
argc
Definition:
plotBacklogPyRoot.py:173
main
int main(int argc, char *argv[])
Definition:
instructionsetLevel.cpp:24
gaudirun.s
string s
Definition:
gaudirun.py:346
std::vector< std::string >
System::instructionsetLevel
GAUDI_API int instructionsetLevel()
Instruction Set "Level".
Definition:
System.cpp:343
std::cout
gaudirun.level
level
Definition:
gaudirun.py:364
std::endl
T endl(T... args)
std::size_t
gaudirun.argv
list argv
Definition:
gaudirun.py:327
GaudiKernel
src
Util
instructionsetLevel.cpp
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