Public bug reported:
[ Impact ]
* This update bumps hipBLASLt from 7.1.1 to 7.2.4 as part of the
coordinated ROCm 7.2 stack release. The new upstream version delivers
expanded hardware and data-type support, a correctness fix, and an
enumeration update:
- Support for the BF16 data type (and BF16 input with FP32 output)
on gfx90a (MI200/MI210/MI250). Users running mixed-precision workloads
on Aldebaran hardware could not use BF16 with hipBLASLt in ROCm 7.1.
- hipBLASLtExt operation APIs are now supported on gfx11XX and gfx12XX
(RDNA3 and RDNA4 GPUs), extending the reach of the extension API to
consumer and workstation hardware.
- Sigmoid Activation Function is added as a new epilogue option, with a
follow-up enumeration value fix (ROCm 7.2.1) ensuring the activation
variant is correctly identified by downstream code.
- Added HIPBLASLT_OVERRIDE_COMPUTE_TYPE_XF32 environment variable,
allowing users to override the XF32 compute type when precision
trade-offs are desired.
- Fixed: users could encounter HIPBLAS_STATUS_INTERNAL_ERROR with various
matrix sizes in CPX (complex) mode. This caused silent failures in
complex-valued GEMM operations.
hipBLASLt is a dependency of PyTorch-ROCm and other ML frameworks for
GEMM acceleration on AMD GPUs.
[ Test Plan ]
1. Build:
- dpkg-buildpackage or sbuild succeeds.
- dpkg --compare-versions 7.2.4+dfsg-0ubuntu1 gt 7.1.1+dfsg-3ubuntu2
returns true.
- No debian/*.symbols file exists for this package;
DPKG_GENSYMBOLS_CHECK_LEVEL=4
is set in debian/rules and will flag any ABI changes at build time.
2. Installability:
- apt install libhipblaslt1 libhipblaslt-dev succeeds.
- Confirm reverse dependencies (e.g. PyTorch-ROCm) remain installable
without rebuild.
3. Autopkgtest (hipblaslt1-tests) on a GPU-equipped testbed:
autopkgtest [22:22:40]: starting date and time: 2026-06-04 22:22:40+0000
autopkgtest [22:22:40]: version 5.55
autopkgtest [22:22:40]: host rocmtest; command line: /usr/bin/autopkgtest
hipblaslt -U --timeout-test=28800 '--setup-commands=export NEEDRESTART_MODE=a;
export NEEDRESTART_SUSPEND=1' '--setup-commands=add-apt-repository -ss -y'
'--setup-commands=add-apt-repository ppa:igorluppi/hipblaslt-7.2.4
--enable-source -y' -- lxd ubuntu-daily:resolute --profile=rocm-gpu
autopkgtest [22:23:46]: testing package hipblaslt version
7.2.4+dfsg-0ubuntu1~ppa1~26.04
autopkgtest [22:24:51]: test hipblaslt1-tests: rocm-test-launcher
/usr/libexec/rocm/libhipblaslt1-tests/run-tests
[ PASSED ] 3147 tests.
autopkgtest [22:25:10]: test hipblaslt1-tests: -----------------------]
autopkgtest [22:25:11]: test hipblaslt1-tests: - - - - - - - - - - results - -
- - - - - - - -
hipblaslt1-tests PASS
autopkgtest [22:25:11]: @@@@@@@@@@@@@@@@@@@@ summary
hipblaslt1-tests PASS
[ Where problems could occur ]
* The BF16 and hipBLASLtExt API additions are new code paths that
were not exercised in 7.1.x. A regression in these paths would manifest
as HIPBLAS_STATUS_INTERNAL_ERROR or incorrect numerical results in
BF16/mixed-precision GEMM on gfx90a, or as API call failures on
gfx11XX/gfx12XX hardware using the Ext API.
* The Sigmoid epilogue addition introduces new kernel dispatch logic.
A regression would appear as incorrect activations or a segfault when
HIPBLASLT_EPILOGUE_SIGMOID_EXT is requested.
* The CPX mode fix changes the code path for complex GEMM operations.
Although the old behaviour was a bug, any application that worked around
the HIPBLAS_STATUS_INTERNAL_ERROR by adjusting matrix sizes may behave
differently with the fixed path. Symptom: unexpected success (benign) or
a different error at a different size boundary.
* The Tensile device library (GPU kernels) is rebuilt for each upstream
release. A regression in kernel selection heuristics could cause
performance degradation or incorrect results for GEMM shapes that
exercise newly added or modified kernel variants.
[ Other Info ]
* ABI: public API is fully stable. abipkgdiff (7.1.1 vs 7.2.4) reports
0 removed, 0 changed, 0 added public functions/variables. Internal
symbol churn (origami:: heuristics, __hip_cuid_* build IDs) is expected
and not ABI-relevant. SONAME: libhipblaslt.so.1.1 (unchanged).
No debian/libhipblaslt1.symbols file exists — tracking this as a
follow-up item.
* This update is part of the coordinated ROCm 7.2 stack release.
* PPA:
https://launchpad.net/~igorluppi/+archive/ubuntu/hipblaslt-7.2.4/+packages
* Upstream version comparison:
https://github.com/ROCm/rocm-libraries/compare/rocm-7.1.1...rocm-7.2.4
* Target: resolute 26.04 / stonking 26.10
** Affects: hipblaslt (Ubuntu)
Importance: Undecided
Status: New
--
You received this bug notification because you are a member of Ubuntu
Bugs, which is subscribed to Ubuntu.
https://bugs.launchpad.net/bugs/2155653
Title:
SRU: New upstream version 7.2.4
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/hipblaslt/+bug/2155653/+subscriptions
--
ubuntu-bugs mailing list
[email protected]
https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
