Your message dated Wed, 21 Aug 2024 20:35:42 +0000
with message-id <[email protected]>
and subject line Bug#1077789: fixed in clblas 2.12-6
has caused the Debian Bug report #1077789,
regarding clblas: please apply upstream patch clBLAS aborts with OpenCL Error
-11 in makeGemmKernel Edit
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1077789: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1077789
Debian Bug Tracking System
Contact [email protected] with problems
--- Begin Message ---
Package: clblas
Version: 2.12-5
Severity: important
Tags: patch
Executing any of the clblas.gemm functions in libclBLAS.so.2.12.0 (libclblas2
2.12-1build1 on bionic) aborts the calling program with this error message:
OpenCL error -11 [...] clblas-2.12/src/library/blas/xgemm.cc:244: void
makeGemmKernel(_cl_kernel**, cl_command_queue, const char*, const char*, const
unsigned char**, size_t*, const char*): Assertion `false' failed.
The error occurs when the backend is an OpenCL 1.1 device. This includes all
GPUs supported by libclc through mesa-opencl-icd (Clover), that is effectively
all AMD GPUs.
The error can be easily reproduced by running the example from the upstream
README.md[1] on a machine with an AMD GPU, with environment entry
OCL_ICD_VENDORS=mesa.icd.
This bug also affects all BLAS functionality in libarrayfire-opencl3, as can be
seen by running e.g. examples/benchmarks/blas or any of the lin_algebra
examples from the libarrayfire-doc package.
The good news is, there is a fix :-) I have submitted this PR[2] upstream, and
am attaching a dquilt-ready patch as upstream releases (and even pulls to
master) are very infrequent.
[1] https://github.com/clMathLibraries/clBLAS#example
[2] https://github.com/clMathLibraries/clBLAS/pull/342
from: https://bugs.launchpad.net/ubuntu/+source/clblas/+bug/1816887
diff -Nru clblas-2.12/debian/patches/342.patch
clblas-2.12/debian/patches/342.patch
--- clblas-2.12/debian/patches/342.patch 1970-01-01 01:00:00.000000000
+0100
+++ clblas-2.12/debian/patches/342.patch 2024-08-02 09:32:06.000000000
+0200
@@ -0,0 +1,34 @@
+From 8dd6df3f1bf543db3765383b4f9646df50d23d08 Mon Sep 17 00:00:00 2001
+From: Marco van Zwetselaar <[email protected]>
+Date: Wed, 20 Feb 2019 15:48:19 +0300
+Subject: [PATCH] Do not pass the -cl-std option to kernel builds
+
+- Resolves the abort in xgemm.cc:244 for OpenCL 1.1 devices
+---
+ src/library/blas/AutoGemm/Includes.py | 6 +++---
+ 1 file changed, 3 insertions(+), 3 deletions(-)
+
+diff --git a/src/library/blas/AutoGemm/Includes.py
b/src/library/blas/AutoGemm/Includes.py
+index 0f616956..e32694d8 100644
+--- a/src/library/blas/AutoGemm/Includes.py
++++ b/src/library/blas/AutoGemm/Includes.py
+@@ -272,8 +272,8 @@ def addKernel(self, kernel):
+ kernelName = kernel.getName()
+ self.incStr += "extern const char * const %s_srcBuildOptions;\n" \
+ % kernelName
+- self.cppStr += "const char * const %s_srcBuildOptions =
\"-cl-std=CL%s\";\n" \
+- % (kernelName, Common.getClCompilerVersion() )
++ self.cppStr += "const char * const %s_srcBuildOptions = \"\";\n" \
++ % kernelName
+
+ self.incFile.write( self.incStr )
+ self.incStr = ""
+@@ -314,7 +314,7 @@ def __init__(self):
+ def addKernel(self, kernel):
+ kernelName = kernel.getName()
+ self.incStr += "extern const char * const %s_binBuildOptions;\n" %
kernelName
+- self.cppStr += "const char * const %s_binBuildOptions =
\"-cl-std=CL%s\";\n" % (kernelName, Common.getClCompilerVersion() )
++ self.cppStr += "const char * const %s_binBuildOptions = \"\";\n" %
kernelName
+
+ self.incFile.write( self.incStr )
+ self.incStr = ""
thanks for considering it.
Gianfranco
OpenPGP_signature.asc
Description: OpenPGP digital signature
--- End Message ---
--- Begin Message ---
Source: clblas
Source-Version: 2.12-6
Done: Andreas Beckmann <[email protected]>
We believe that the bug you reported is fixed in the latest version of
clblas, which is due to be installed in the Debian FTP archive.
A summary of the changes between this version and the previous one is
attached.
Thank you for reporting the bug, which will now be closed. If you
have further comments please address them to [email protected],
and the maintainer will reopen the bug report if appropriate.
Debian distribution maintenance software
pp.
Andreas Beckmann <[email protected]> (supplier of updated clblas package)
(This message was generated automatically at their request; if you
believe that there is a problem with it please contact the archive
administrators by mailing [email protected])
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA256
Format: 1.8
Date: Wed, 21 Aug 2024 22:13:03 +0200
Source: clblas
Architecture: source
Version: 2.12-6
Distribution: unstable
Urgency: medium
Maintainer: Debian Science Maintainers
<[email protected]>
Changed-By: Andreas Beckmann <[email protected]>
Closes: 1077788 1077789
Changes:
clblas (2.12-6) unstable; urgency=medium
.
* Team upload.
* Fix tests on OpenCL 1.1 devices. Upstream PR#342.
(Closes: #1077789) (LP: #1816887)
* Compile examples during package build.
* Fix building and testing with GCC 14. Upstream PR#362. (Closes: #1077788)
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