Re: [Gretl-devel] imposed paths for shell commands

On Sat, 7 Jan 2017, Sven Schreiber wrote: As I've indicated, IMO either MPI or simple shell parallelism is the way to go, but I've experimented with coercing "launch" into doing what you wanted (on Linux, I'm not in a position to test in Windows right now) and it can be done, though redirection of the child's output doesn't seem to work so you have to use "outfile". <parent> print "parent started" launch gretlcli -b taketime.inp print "parent done" </parent> <child> outfile child.out --write print "child started" loop 1000 -q matrix X = mnormal(500,500) endloop print "child done" outfile --close </hansl> If you run parent in gretl you get the "parent done" message right away, and taketime.inp works on in the background to produce child.out. This forking stuff is fiendishly complicated and also differs radically by platform, which is one reason for recommending software that really knows what it's doing in this department, such as MPI or the respective shells. Allin