On 11/11/2024 09:42, Tobias Burnus wrote:
Currently, for GCN, only one offload ISA is supported; this might lead
to errors when multiple different AMD GPUs are installed on the same system,
at least when using the "wrong" device/device number.
In case of the testsuite, this occurs for instance
with libgomp.c-c++-common/icv-9.c which iterates all devices.
In order to be more helpful, this patch also outputs the device
number:
libgomp: GCN fatal error: GCN code object ISA 'gfx90a' does not match
GPU ISA 'gfx906' of device 1. Try to recompile with '-foffload-options=-
march=gfx906'. OK for mainline?
Tobias
PS: I increased the buffer size to ensure the new ' of device '
and device numbers <= 99 and ISA names like 'gfx10-3-generic'
and GPU ISA names like gfx1103 will fit.
I think I'd prefer
libgomp: GCN fatal error: GCN code object ISA 'gfx90a' does not match
GPU ISA 'gfx906' (device 1).
Try to recompile with '-foffload-options=-march=gfx906',
or use ROCR_VISIBLE_DEVICES to disable incompatible devices.
So, brackets instead of "of", and explain how to fix both possible
issues. Disabling the device will also allow host-fallback to work,
which might be the right thing for some end-users.
Andrew
