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Adding a random seed to control randomness in 'permute'.

This commit is contained in:
Alan Mishchenko 2021-03-11 17:45:01 -10:00
parent f87c8b434a
commit b2ca837521
1 changed files with 17 additions and 2 deletions
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19
src/base/abci/abc.c
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@ -23681,12 +23681,24 @@ int Abc_CommandPermute( Abc_Frame_t * pAbc, int argc, char ** argv )
int fFlops = 1;
int fNodes = 1;
int fFanout = 0;
int Seed = -1;
int c;
Extra_UtilGetoptReset();
while ( ( c = Extra_UtilGetopt( argc, argv, "Fiofnxh" ) ) != EOF )
while ( ( c = Extra_UtilGetopt( argc, argv, "SFiofnxh" ) ) != EOF )
{
switch ( c )
{
case 'S':
if ( globalUtilOptind >= argc )
{
Abc_Print( -1, "Command line switch \"-S\" should be followed by an integer.\n" );
goto usage;
}
Seed = atoi(argv[globalUtilOptind]);
globalUtilOptind++;
if ( Seed < 0 )
goto usage;
break;
case 'F':
if ( globalUtilOptind >= argc )
{
@ -23747,13 +23759,16 @@ int Abc_CommandPermute( Abc_Frame_t * pAbc, int argc, char ** argv )
Abc_Print( -1, "Command \"permute\" has failed.\n" );
return 1;
}
if ( Seed >= 0 )
srand( (unsigned)Seed );
Abc_NtkPermute( pNtkRes, fInputs, fOutputs, fFlops, pFlopPermFile );
Abc_FrameReplaceCurrentNetwork( pAbc, pNtkRes );
return 0;
usage:
Abc_Print( -2, "usage: permute [-iofnxh] [-F filename]\n" );
Abc_Print( -2, "usage: permute [-S num] [-iofnxh] [-F filename]\n" );
Abc_Print( -2, "\t performs random permutation of inputs/outputs/flops\n" );
Abc_Print( -2, "\t-S num : the random seed to generate permutations (0 <= num < INT_MAX) [default = %d]\n", Seed );
Abc_Print( -2, "\t-i : toggle permuting primary inputs [default = %s]\n", fInputs? "yes": "no" );
Abc_Print( -2, "\t-o : toggle permuting primary outputs [default = %s]\n", fOutputs? "yes": "no" );
Abc_Print( -2, "\t-f : toggle permuting flip-flops [default = %s]\n", fFlops? "yes": "no" );