Try to divide the image equally between PE's. Be aware though that the size of the PE's will get bigger as the block size gets bigger as they need to allocate buffers big enough to pack the data into before sending a message containing the rendered pixels back to the master. Plus, if you're using a Network of Workstations, rather than a single MP machine, the messages passing accross your network will be bigger. This is just based on my experimentation so fiddle around in your setup for best results. Only seen this on Linux on my development box.
Slaves now honour EXIT whenever they get it.
Slaves now honour EXIT whenever they get it. If you have any comments feel free to mail me at Home or at Work .