>> Is there a some sort of queue/lock > > No > >> or will a race condition result? > > No. > >> It's not discussed in the documentation. > > Yes it is :-)
I did not notice it in the VecSetValue(s) man pages... > If ADD_VALUES is used then the location will always get the correct sum. > > If INSERT_VALUES is used then one of the values set will be used but it is > not defined which one. Many thanks for the clarifications. Would the same be the case with MatSetValues and a distributed matrix? Regards, Dominik
