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Could not allocate pools when using pmap
2 posts by 2 authors  



li...@ualberta.ca 	

Oct 13


Hello,

I am a problem when I use pmap function to do parallel computing on a 48 cores workstation. The workstation has Linux system. I am using a recent updated julia-0.4.5. I downloaded the binary version and set up path to bin file to call Julia.

It is fine to do

julia abc.jl

However, when I did following,

julia -p 16 abc.jl

Error: Could not allocate pools

Then I type,

ulimit -a

[linan@pd-srv-msa-01 ~]$ ulimit -a
core file size          (blocks, -c) 0
data seg size           (kbytes, -d) unlimited
scheduling priority             (-e) 0
file size               (blocks, -f) unlimited
pending signals                 (-i) 1390380
max locked memory       (kbytes, -l) 64
max memory size         (kbytes, -m) unlimited
open files                      (-n) 1024
pipe size            (512 bytes, -p) 8
POSIX message queues     (bytes, -q) 819200
real-time priority              (-r) 0
stack size              (kbytes, -s) 10240
cpu time               (seconds, -t) unlimited
max user processes              (-u) 1024
virtual memory          (kbytes, -v) unlimited
file locks                      (-x) unlimited

Could you please let me know where this problem come from and how to solve this problem?

Thanks very much.

Linan
 


Mauro 	

Oct 13


I think this is https://github.com/JuliaLang/julia/issues/10390 
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