exited with code 35072

[Andrew Dabrowski]

What does "code 35072" mean?

I'm experimenting with parallel processes on a mainframe, and my test job with a short execution time and small data set ran fine, when I tried the same program with a large data set and long execution time I got the error "exited with code 35072".

[Stefan Karpinski]

No idea. Can you give more context?

[Andrew Dabrowski]

I'm experimenting with GAs.  I'm using a Dict to keep tabs on the population and fitness, and I wanted to try using a parallel algorithm to initially populate the Dict.

function pAddQGen( n::Int, dct::Dict{ Array{Int,1}, Float64 }, len::Int=4000, lim::Int=5 )
    lst = [ randOrthGen( len, lim, false ) for i = 1 : n ]
    function enter( gen:: Array{Int,1}, fit::Float64 )
        dct[ gen ] = fit
    end
    fits = pmap( getQGenFit, lst )
    map( enter, lst, fits )
end

The function randOrthGen just generates a random genome, and getQGenFit evaluates its fitness.  When I test this with

pAddQGen( 2, testD, 10,  2 )

as a batch job on the mainframe it seems to run fine, but when I try it with len=4000 it produces the error.

As you've probably grown tired of hearing me say, I'm not a real programmer, so feel free to tell me I'm doing everything all wrong.

[Stefan Karpinski]

As far as I'm concerned, anyone who writes programs is a programmer. How are you getting this error code? Is it being printed by the Julia process? By the shell? By the batch scheduler? 35072 is 137 << 8 (status codes are left shifted by a byte for some reason I can't recall) and status code 137 seems to indicate getting reaped by the OOM killer: http://stackoverflow.com/questions/1041182/why-does-my-perl-script-exit-with-137. It seems like when you run with len = 4000, you may be allocating too much memory.

[Andrew Dabrowski]

Ahh, thanks, that's a good clue, I'll fool around with memory allocation...

The error code is via the batch scheduler, but seems to be just passed on from Julia.