Questing is already on 6.15, I guess that task can be closed now.
** Changed in: linux (Ubuntu Questing)
Status: New => Fix Released
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https://bugs.launchpad.net/bugs/2120454
Title:
Pytorch reports incorrect GPU memory causing "HIP Out of Memory"
errors
Status in linux package in Ubuntu:
Fix Released
Status in linux-oem-6.14 package in Ubuntu:
Invalid
Status in linux source package in Noble:
New
Status in linux-oem-6.14 source package in Noble:
New
Status in linux source package in Plucky:
New
Status in linux-oem-6.14 source package in Plucky:
Invalid
Status in linux source package in Questing:
Fix Released
Status in linux-oem-6.14 source package in Questing:
Invalid
Bug description:
When running PyTorch on an APU it reports wrong amount of memory and
models can't run.
torch.OutOfMemoryError: HIP out of memory. Tried to allocate 18.00
MiB. GPU 0 has a total capacity of 15.60 GiB of which 8.09 MiB is
free. Of the allocated memory 15.10 GiB is allocated by PyTorch, and
195.37 MiB is reserved by PyTorch but unallocated. If reserved but
unallocated memory is large try setting
PYTORCH_CUDA_ALLOC_CONF=expandable_segments:True to avoid
fragmentation. See documentation for Memory Management
(https://pytorch.org/docs/stable/notes/cuda.html#environment-
variables)
These two commits need to be backported into amdkfd to fix it.
commit 8b0d068e7dd1 ("drm/amdkfd: add a new flag to manage where VRAM
allocations go")
commit 759e764f7d58 ("drm/amdkfd: use GTT for VRAM on APUs only if GTT is
larger")
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