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1) Message boards : Generalized Fermat Prime Search : New genefer (3.x.x) apps now available for testing (Message 65424)
Posted 2257 days ago by Profile Toni Keskitalo
Thank you, Michael.

After reading your post I realised I had changed something about configuration: I had been building a tile server for Openstreetmap using these instructions. There is a recommendation to change kernel.shmmax to a bigger value there, and after changing it back, Genefer is now working okay.

So it was a user error, not something dependent on PG or Boinc.
2) Message boards : Generalized Fermat Prime Search : New genefer (3.x.x) apps now available for testing (Message 65410)
Posted 2257 days ago by Profile Toni Keskitalo
Hi. This is my first post here, and I wasn't completely sure where to post.

I run Boinc (including PrimeGrid) on one Linux machine: 3.5.0-28-generic #48~precise1-Ubuntu SMP Wed Apr 24 21:42:24 UTC 2013 x86_64 x86_64 x86_64 GNU/Linux; Nvidia GeForce GTX 560 Ti, driver 304.88 (from precise-updates repository). No overclocking. Processor is "Intel(R) Core(TM) i5-3450 CPU @ 3.10GHz".

I've installed boinc, boinc-client, boinc-manager and boinc-nvidia-cuda version 7.0.27+dfsg-5ubuntu0.12.04.1.

I'm having problems with Genefer WR. I get a computation error immediately. Genefer WR worked earlier, and this happened after I updated KDE (which may be coincidental). After that the Genefer said in boincmgr that "Waiting for shared memory"; I aborted that task and the computation errors started. PPS sieve does works on GPU.

Relevant event log:

Wed 15 May 2013 21:30:57 EEST | PrimeGrid | Starting task genefer_wr_4194304_144099_31 using genefer_wr version 206 (cudaGFNWR) in slot 0
Wed 15 May 2013 21:30:58 EEST | PrimeGrid | Computation for task genefer_wr_4194304_144099_31 finished
Wed 15 May 2013 21:30:58 EEST | PrimeGrid | Output file genefer_wr_4194304_144099_31_0 for task genefer_wr_4194304_144099_31 absent


The application is version "primegrid_genefer_3_1_2_2_2.06_i686-pc-linux-gnu__cudaGFNWR". I have no app_info or app_config.

I don't really know how I should try to fix Genefer WR calculation so any help is appreciated.
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