parallel process

How to make parallel calculations on SKILL ?

 

one way i can see is to launch several external processes
using interprocess communication (ipc)

 

My situation:
I've got program GUI on SKILL, it starts external program
/ sh("./program &") /.
External program is calculating and GUI must at the same time output
intermediate data to window from external program (it's clear) AND GUI
must respond to user actions (stop program, pause, exit, e.t.c)

 

you probably can do this with IPC like this :

instead of launching your program with sh, lauch it with ipcBeginProcess.
you can define skill callback functions to synchronously process output
from the program. then, execution can continue normally and callbacks
will be called whenever data is available.

procedure( launchProcess()
process = ipcBeginProcess( "command" nil "myDataHandler" "myErrHandler"
"myPostExecFunction" )
) ; procedure

procedure( myDataHandler( childId data )
printf( "program outputted %s\n" data )
) ; myDataHandler

procedure( myErrorHandler( childId data )
printf( "program error : %s\n" data )
) ; myErrorHandler

procedure( myPostExecFunction( childId status)
printf( "program terminated with status %d\n" status )
) ; myPostExecFunction

 

Thank you VERY much !!!! ))

 

Hi

it is not possible to start several SKILL calculations parallel, but
what you can do, is to start several ipcProcesses outside of cadence.
You can communicate synchronous or asynchronous with a chip process.

These are the main functions you need.

ipcBeginProcess()
ipcReadProzess()
ipcWriteProcess()
ipcKillProcess()

CU

Arnold