Thanks Tim. Richard
On Wednesday, July 22, 2015 at 12:27:52 PM UTC+1, Tim Holy wrote: > > Just put @sync in front of @parallel. The workers are not yet done with > their > tasks before you run your test. > > Please capture these hints by making pull requests to improve the parallel > documentation---you'll save future users the confusion you're suffering > (sorry), and other developers the time in answering. > > https://github.com/JuliaLang/julia/blob/master/CONTRIBUTING.md#improving-documentation > > > --Tim > > On Tuesday, July 21, 2015 03:58:19 PM Richard Dennis wrote: > > Running 0.4.0-dev+5933. I expected the print outs from this code to be > the > > same and to equal zero. What am I doing wrong? Thanks in advance. > > > > addprocs(4); > > > > @everywhere function test(state) > > return state.^2.0 > > end > > > > const n = 10000; > > const m = 10000; > > states = randn(n); > > store = zeros(n,m); > > for i = 1:n j = 1:m > > state = states[i] > > store[i,j] = i-j+test(state) > > end > > > > stored = SharedArray(typeof(1.0),n,m); > > @parallel for i = 1:n j = 1:m > > state = states[i] > > stored[i,j] = i-j+test(state) > > end > > > > println(maximum(store-stored)) > > println(maximum(store-stored)) > > > > rmprocs(2:5); > >
