On 7.12.2020 0.31, Ximin Luo wrote:
Package: mesa-opencl-icd
Version: 20.2.3-1
Severity: normal
Control: affects -1 leela-zero
Dear Maintainer,
The current version of mesa-opencl-icd does not work with Leela-Zero; clinfo is
fine:
$ CLOVER_DEBUG=llvm,native CLOVER_DEBUG_FILE=dump-file
OCL_ICD_VENDORS=libMesaOpenCL.so.1 clinfo -l
Platform #0: Clover
`-- Device #0: Radeon RX 580 Series (POLARIS10, DRM 3.39.0, 5.9.0-4-amd64,
LLVM 11.0.0)
$ CLOVER_DEBUG=llvm,native CLOVER_DEBUG_FILE=dump-file
OCL_ICD_VENDORS=libMesaOpenCL.so.1 leelaz
[..]
Selected device: Radeon RX 580 Series (POLARIS10, DRM 3.39.0, 5.9.0-4-amd64,
LLVM 11.0.0)
with OpenCL 1.1 capability.
Half precision compute support: No.
Tensor Core support: No.
Started OpenCL SGEMM tuner.
Will try 290 valid configurations.
Failed to compile: 290 kernels.
Failed to find a working configuration.
Check your OpenCL drivers.
Minimum error: 100.000000. Error bound: 0.000100
Started OpenCL SGEMM tuner.
Will try 290 valid configurations.
Failed to compile: 290 kernels.
Failed to find a working configuration.
Check your OpenCL drivers.
Minimum error: 100.000000. Error bound: 0.100000
Both single precision and half precision failed to run.
terminate called after throwing an instance of 'std::runtime_error'
what(): Failed to initialize net.
Aborted
exit code 134
I think Mesa is the problem and not libclc; I downgraded to a
previously-working version
of libclc (0.2.0+git20180917-3) but with current Mesa (20.2.3-1) and this bug
was still
present. I did not try downgrading Mesa (or upgrading it to the version in
experimental)
as that is a much more invasive change to my system, I hope you can appreciate.
Despite the presence of CLOVER_DEBUG=llvm,native CLOVER_DEBUG_FILE=dump-file
there were
no dump-files dumped by the above leelaz command, maybe you can deduce
something from that.
Let me know if I can run anything else to provide further information.
For the time being I am using the proprietary AMD OpenCL lib as described in
#976295.
Ximin
What was the previous version of mesa? Regressions should be filed
upstream too.
--
t
