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  1. #1
    Join Date
    Sep 2010
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    Leiden, the Netherlands
    Posts
    4,372

    Ubuntu 20.04

    There is a new Ubuntu version, 20.04 -and therefore new Xubuntu and Lubuntu as well.

    The good: It comes with Boinc Client 7.16.6 -and Linux kernel 5.4

    The bad: It -the Open Source AMDGPU driver of Ubuntu 20.04- is not using OpenCL, so you are not able to crunch with it.

    The badder: If you enable OpenCL (by downloading the Oibaf drivers, which works with Linux Mint 19.3), the Boinc Manager comes up with 'GPU detection failed: process exited with status 1: Operation not permitted'...
    Code:
    1-5-2020 04:00:26	Starting BOINC client version 7.16.6 for x86_64-pc-linux-gnu	
    1-5-2020 04:00:26	log flags: file_xfer, sched_ops, task, coproc_debug	
    1-5-2020 04:00:26	Libraries: libcurl/7.68.0 OpenSSL/1.1.1f zlib/1.2.11 brotli/1.0.7 libidn2/2.2.0 libpsl/0.21.0 (+libidn2/2.2.0) libssh/0.9.3/openssl/zlib nghttp2/1.40.0 librtmp/2.3	
    1-5-2020 04:00:26	Data directory: /var/lib/boinc-client	
    1-5-2020 04:00:26	[coproc] launching child process at /usr/bin/boinc	
    1-5-2020 04:00:26	[coproc] with data directory /var/lib/boinc-client	
    1-5-2020 04:00:27	GPU detection failed: process exited with status 1: Operation not permitted	
    1-5-2020 04:00:27	[coproc] read_coproc_info_file() returned error -108	
    1-5-2020 04:00:27	No usable GPUs found	
    1-5-2020 04:00:27	libc: Ubuntu GLIBC 2.31-0ubuntu9 version 2.31	
    1-5-2020 04:00:27	Host name: Asrock-AM1H-ITX	
    1-5-2020 04:00:27	Processor: 4 AuthenticAMD AMD Athlon(tm) 5350 APU with Radeon(tm) R3 [Family 22 Model 0 Stepping 1]	
    1-5-2020 04:00:27	Processor features: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 ht syscall nx mmxext fxsr_opt pdpe1gb rdtscp lm constant_tsc rep_good nopl nonstop_tsc cpuid extd_apicid aperfmperf pni pclmulqdq monitor	
    1-5-2020 04:00:27	OS: Linux Ubuntu: Ubuntu 20.04 LTS [5.4.0-28-generic|libc 2.31 (Ubuntu GLIBC 2.31-0ubuntu9)]	
    1-5-2020 04:00:27	Memory: 15.08 GB physical, 2.00 GB virtual	
    1-5-2020 04:00:27	Disk: 109.04 GB total, 60.95 GB free	
    1-5-2020 04:00:27	Local time is UTC +2 hours	
    1-5-2020 04:00:27	VirtualBox version: 6.1.6_Ubuntur137129
    Note the total lack of OpenCL, even that for the CPU (POCL). Clinfo gives "CommandLine Error: Option 'limited-coverage-experimental' registered more than once!
    LLVM ERROR: inconsistency in registered CommandLine options"
    The culprit seems to be that various parts needed for crunching have been compiled using the same LLVM version, opening the same OpenCL...previously, under Xubuntu 18.04, my two (!) active drivers ran OpenCL 1.1 (GCN) and 1.2 (Radeon) on the single R3/HD8400 IGP.
    So: Hold off till 20.04.1 -as is the advice given at Xubuntu for users of AMD GPUs...
    Last edited by Dirk Broer; 05-01-2020 at 06:35 PM.


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