Emulation mode seg. fault but works fine on the GPU

Accelerated Computing HPC Compilers Legacy PGI Compilers
#1

Hi there,

I wonder if anyone has seen this error before and if so what was the cause of it. The code I’m porting seems to run fine on the GPU but when I changed to emulation mode in order to print an array it resulted in the program failing with a segmentation fault.

How can this be?

I’m quite puzzled as I would have thought that if it didn’t work on 1 thread it certainly wouldn’t work on several.

Any thoughts or wisdom welcome.

Cheers,
Crip_crop

#2

Fixed the problem… emulation mode didn’t like my automatic arrays in host code which was easily solved by declaring them allocatable.

crip_crop