I'm using LV 7.1.1 on Solaris and I'm having major problems with the System Exec function in combination with Open System Command Pipe.
1. The program has to run different stuff in parallel but the System Exec won't run in parallel with Open System Command Pipe. It immediately hangs and neither function ever returns. LabVIEW must be killed.
2. After executing Open System Command Pipe, stopping the program and then executing a System Exec, that too hangs. The external script called by Open System Command Pipe is no longer running but obviously LV leaves something behind anyway. Close Pipe doesn't seem to clean up everything. Again, LabVIEW must be killed.
3. Also, regardless of any System Exec call, the first time Open System Command Pipe and Read Pipe is executed it takes a very long time to get the result. After stopping the program and restarting it, it's much faster.
Has anyone else experienced these problems?