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instructionsetLevel.cpp
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1 /*
2 * instructionsetLevel.cpp
3 *
4 * Created on: Feb 3, 2015
5 * Author: Marco Clemencic
6 */
7
8 #include <GaudiKernel/System.h>
9
10 #include <iostream>
11 #include <string>
12 #include <vector>
13
14 int main(int argc, char* argv[]){
15
16 // These names are those reported in flags field of /proc/cpuinfo on Linux
17 // See arch/x86/include/asm/cpufeature.h
18 std::vector<std::string> sets{
19 // "80386",
20 "sse",
21 "sse2",
22 "sse3", // FIXME: This is not reported by Linux (?)
23 "ssse3",
24 "sse4_1",
25 "sse4_2",
26 "avx",
27 "avx2",
28 "avx512f" // FIXME: This is not reported by Linux (?)
29 };
30
31 if (argc == 1) {
32 size_t level = System::instructionsetLevel() - 1;
33 if (level < sets.size())
34 for(int i = System::instructionsetLevel() - 1; i >= 0; --i){
35 std::cout << sets[i] << std::endl;
36 }
37 else {
38 std::cout << "unknown instruction set level: " << level << std::endl;
39 return 2;
40 }
41 } else if ((argc == 2) && (std::string{"all"} == std::string{argv[1]})) {
42 for(auto& s: sets)
43 std::cout << s << std::endl;
44 } else {
45 std::cout << "Error: wrong arguments\nUsage:\n\t" << argv[0] << " [all]"
46 << std::endl;
47 return 1;
48 }
49
50 return 0;
51 }
System.h
gaudirun.argv
list argv
Definition: gaudirun.py:227
System::instructionsetLevel
GAUDI_API int instructionsetLevel()
Instruction Set "Level".
Definition: System.cpp:434
std::endl
T endl(T...args)
std::string
STL class.
plotBacklogPyRoot.argc
argc
Definition: plotBacklogPyRoot.py:128
main
int main(int argc, char *argv[])
Definition: instructionsetLevel.cpp:14
std::vector< std::string >
gaudirun.s
string s
Definition: gaudirun.py:245
gaudirun.level
level
Definition: gaudirun.py:261
std::cout