I'm curious how openmp deals with (or doesn't look like this), with unlimited stacking:
[alm475@compute-0-139 ~]$ ulimit -a
core file size (blocks, -c) 0
data seg size (kbytes, -d) unlimited
max nice (-e) 0
file size (blocks, -f) unlimited
pending signals (-i) 278528
max locked memory (kbytes, -l) unlimited
max memory size (kbytes, -m) unlimited
open files (-n) 4096
pipe size (512 bytes, -p) 8
POSIX message queues (bytes, -q) 819200
max rt priority (-r) 0
stack size (kbytes, -s) unlimited
cpu time (seconds, -t) unlimited
max user processes (-u) 278528
virtual memory (kbytes, -v) unlimited
file locks (-x) unlimited
[alm475@compute-0-139 ~]$ big_stack_openmp
Segmentation Fault
[alm475@compute-0-139 ~]$ ulimit -s 30960
[alm475@compute-0-139 ~]$ big_stack_openmp
The last command runs clean and gives the correct result. This requires a stitch of ~ 12 MB.
What is the behavior of stack distributions in a parallel environment if the size of the declared stack is not specified?
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