Hmm, try removing the initial assignment of that variable to NULL. Barry
> On Mar 23, 2018, at 10:37 AM, Samuel Lanthaler <[email protected]> wrote: > > Thanks for your answers. > > @Timothee: I think normally, it should be fine to use the pointer like an > array. At least, I have done the same in some other cases. But I can try > anyways. > > @Barry: Replacing the copy by a for-loop does not seem to help in this case: > the output pointer has LBOUND=1 and UBOUND=0, SIZE=0, so that trying to > access any index leads to a segfault. > > > On 03/23/2018 04:30 PM, Smith, Barry F. wrote: >> Use a loop to do the copy >> >> At line 127 of file allreduce.f90 >> Fortran runtime error: Array bound mismatch for dimension 1 of array >> 'copy_buffer' (10/0) >> >> >> >>> On Mar 23, 2018, at 9:10 AM, Samuel Lanthaler <[email protected]> wrote: >>> >>> Hi all, >>> >>> I am having trouble using the function VecGetArrayReadF90 under gfortran. I >>> have created a minimal example and put it in the attachment. Basically, it >>> appears that the input pointer is empty upon return from >>> VecGetArrayReadF90. The code runs fine, when compiled with ifort, so I >>> don't know what's going on. >>> >>> I am attaching the code and makefile that I used, as well as the command >>> line output that I can see. Though the errors are just to do with the fact >>> that the output pointer is empty, so the command line output is not all >>> that helpful... >>> >>> Thanks in advance for your help! >>> Sam >>> <output.txt><makefile><allreduce.f90> >
