On Mon, Apr 03, 2017 at 10:56:13AM -0600, Jeff Law wrote: > On 04/01/2017 06:24 AM, Jakub Jelinek wrote: > > Apparently Darwin has insane default stack size for pthread_create > > unless overridden through pthread_attr_setstacksize - 512kB, compared e.g. > > to Linux usual default of around 8MB. For typical OpenMP uses that is way > > too low, so the following patch is an attempt to bump it to 2MB just on > > Darwin, and on other targets keep the default. Everything can be in any > > case overridden through {,G}OMP_STACKSIZE env variables. > > > > Bootstrapped/regtested on x86_64-linux and i686-linux, can anyone please > > test it > > on darwin? > > > > 2017-04-01 Jakub Jelinek <ja...@redhat.com> > > > > PR libgomp/79876 > > * config/posix/thread-stacksize.h: New file. > > * config/darwin/thread-stacksize.h: New file. > > * config/nvptx/thread-stacksize.h: New file. > > * env.c: Include thread-stacksize.h. > > (initialize_env): Initialize stacksize to GOMP_DEFAULT_STACKSIZE > > instead of 0. Call pthread_attr_setstacksize even if > > GOMP_DEFAULT_STACKSIZE is non-zero. > I've got a build started, but it's on an ancient macbook pro, so it'll take > a long time. Someone else with modern hardware could certainly get this > done faster :-)
Dominique has already tested it on Darwin 16 and said he'll test on Darwin 10; I'm waiting for those results. Jakub