Sure, but *how* do I preset JULIA_NUM_THREADS in the environment of the workers? It'll still be application dependent, so it can be in a .profile or so (which probably won't be run anyway for the worker processes).
On Wednesday, August 17, 2016 at 12:00:16 PM UTC+2, Jeffrey Sarnoff wrote: > > Hi Oliver, > > I omitted two letters "the environment" should have been "their > environment": > "and in [each of] *their* [remote] enviroment[s] JULIA_NUM_THREADS had > been preset [in each remote environment before each remote Julia had been > started].. > > from in the REPL ?addprocs > " Note that workers do not run a .juliarc.jl startup script, nor do they > synchronize their global state (such as global variables, new method > definitions, > and loaded modules) with any of the other running processes." > > so it seems environment variables are one of those nonsynced things > > -- Jeffrey > > > On Wednesday, August 17, 2016 at 5:17:53 AM UTC-4, Oliver Schulz wrote: >> >> Hi Jeff, >> >> > If your remote workers are remotely local invocations of Julia and in >> the environment JULIA_NUM_THREADS has been preset, then the remote workers >> will be using that many threads >> >> I tried it, and at least when the workers are started via SSH (using >> addprocs([host1, ...])), that doesn't seem to be the case, JULIA_NUM_THREADS >> doesn't seem to be passed on. It would actually be very helpful to be >> able to forward (or explicitly set) environment variables for remote >> workers. >> >> Cheers, >> >> Oliver >> >> >> On Wednesday, August 17, 2016 at 12:16:11 AM UTC+2, Jeffrey Sarnoff wrote: >>> >>> Hi Oliver, >>> As I understand it: >>> JULIA_NUM_THREADS is an environment variable read by the local >>> invocation of Julia. It is not a run-time passable value. If your remote >>> workers are remotely local invocations of Julia and in the environment >>> JULIA_NUM_THREADS has been preset, then the remote workers will be using >>> that many threads (if the have the cores). >>> >>> >>> On Tuesday, August 16, 2016 at 11:52:20 AM UTC-4, Oliver Schulz wrote: >>>> >>>> I guess the answer is "no", then? >>>> >>>> On Monday, August 1, 2016 at 3:26:17 PM UTC+2, Oliver Schulz wrote: >>>>> >>>>> Is it possible to pass on or explicitly set JULIA_NUM_THREADS for >>>>> remote workers started via >>>>> >>>>> addprocs([host1, ...]) >>>>> >>>>> ? >>>>> >>>>>
