https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99005
Bug ID: 99005
Summary: libgomp runtime does not support AMD GPU offloading
for OpenACC directives
Product: gcc
Version: 10.2.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: fortran
Assignee: unassigned at gcc dot gnu.org
Reporter: kd486 at cam dot ac.uk
Target Milestone: ---
Created attachment 50143
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=50143&action=edit
Sample code with single OpenACC directive in for loop
Simple Gfortran compiled OpenACC code crashes. Code used attached and compiled
with:
gfortran -fopenacc -Wall -Wextra -foffload=amdgcn-amdhsa="-march=gfx900" -c
mymodule.f90
The server has an AMD EPYC 7742 CPU with 4 Vega 20 AMD GPUs.
Runtime error:
./main
libgomp: GCN fatal error: Run-time could not be initialized
Runtime message: HSA_STATUS_ERROR_OUT_OF_RESOURCES: The runtime failed to
allocate the necessary resources. This error may also occur when the core
runtime library needs to spawn threads or create internal OS-specific events.
Code runs fine without GPU offloading, or with offloading with PGI compiler.
