Groups   72 of 99+      julia-users › Question regarding  sync  parallel and SharedArrays - different results everytime 1 post by 1 author      Eduardo Lenz    Jul 30   Hi.  I was playing with SharedArrays and parallel lopps and the following happened  Julia 0.4.6, windows official build   addprocs 4   julia  A  SharedArray Float64,5  5-element SharedArray Float64,1 :  0.0  0.0  0.0  0.0  0.0  julia   sync  parallel for i 1:1000                       for j 1:5                            A j  +  1                       end            end   4-element Array Any,1 :  RemoteRef Channel Any   2,1,105   RemoteRef Channel Any   3,1,106   RemoteRef Channel Any   4,1,107   RemoteRef Channel Any   5,1,108   julia  A 5-element SharedArray Float64,1 :  857.0  866.0  869.0  866.0  866.0  julia  A  SharedArray Float64,5  5-element SharedArray Float64,1 :  0.0  0.0  0.0  0.0  0.0  julia   sync  parallel for i 1:1000                      for j 1:5                            A j  +  1                      end            end      4-element Array Any,1 :  RemoteRef Channel Any   2,1,89   RemoteRef Channel Any   3,1,90   RemoteRef Channel Any   4,1,91   RemoteRef Channel Any   5,1,92   julia  A 5-element SharedArray Float64,1 :  1000.0  1000.0  1000.0  1000.0  1000.0  Why the results are different ? I would expect 1000 everytime. Am I doing  something so silly that I cannot  see in this such simple example ?   Thanks.