I am trying to use pmap to have each (local) processor run (and return the output of) an external command via
However, the children freeze or lock prior to running the external command, and just hang.
The children do *read* data from the same file, but create temporary output in different files.
Is this a known problem? The entire process works fine when I replace pmap with map (but of course is not parallelized).
Any help or pointers would be appreciated. I am running version 0.1.0+110332400.ra15d (commit a15dfa7a59) on Mac OS X 10.6.8.