Posts by Jim1348
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1) Message boards : Number crunching : New TCGA workunits (TCGAz) (Message 1454)
Posted 19 Dec 2018 by Jim1348
The 4th is STILL running at 12% completion after 377 hours (and 312 hours since the last checkpoint).

All projects have stuck work units; some more than others. If the Progress % is not making any progress after a few hours (24 hours is more than enough time), then it is stuck in a loop.
2) Message boards : Number crunching : sse2 vs avx (Message 1447)
Posted 18 Dec 2018 by Jim1348

This looks like another Ryzen bug. This time CPU also jumps to address in middle of instruction, what must end in crash sooner or later.

I have reported this bug on AMD forum. Here is link to my post, it should be visible soon when moderator approves it:

The SSE2 problem for me (and Beyond) was only on the Ryzen 1700. The Ryzen 2700 is OK. Maybe you should amend your report?

Thanks for looking into this.
3) Message boards : Number crunching : New TCGA workunits (TCGAz) (Message 1440)
Posted 15 Dec 2018 by Jim1348
Now at 183 hours, and 156 hours since the last checkpoint (which is troubling). Still at 12%.

I have seen a few of those. Before they get that far, I abort them. I think you are unnecessarily conscientious; they are duds.
4) Message boards : Number crunching : sse2 vs avx (Message 1430)
Posted 11 Dec 2018 by Jim1348
Looking at the current applications it doesn't even show an fma version for Windows. Maybe v1.10 was the last fma version? I wish we could just pick the app(s) we want to run through project preferences.

My Ryzen 1700 and 2700 machines are on Ubuntu 18.04, and yes the fma is version 1.10. But I used Windows earlier on an i7-3770, and it did quite well compared to Linux. But that one got only SSE2 and AVX. I think the latter was slightly faster.

I agree; let us select them and be done with it.
5) Message boards : Number crunching : sse2 vs avx (Message 1428)
Posted 11 Dec 2018 by Jim1348
Is fma faster than avx on the Ryzen 1700?

It seems to be just slightly, though they are so close that it would take longer-term testing to be sure. I think it would be easier for the project to find the best extension for a given processor type, and just use it.
6) Message boards : Number crunching : sse2 vs avx (Message 1425)
Posted 10 Dec 2018 by Jim1348
Thanks a lot. I substituted "fma" for "avx", and it is running fine on my Ryzen 1700, making it productive again.
7) Message boards : Number crunching : sse2 vs avx (Message 1419)
Posted 8 Dec 2018 by Jim1348
I have a Ryzen 2700 that is only sent avx WUs. Everything is fine there. Recently I brought back my 2 Ryzen 1700 machines and after failing a few sse2 WUs I started aborting them. After a couple days they started getting only avx WUs (for a long time). Now all of a sudden they're being sent large numbers of sse2 WUs again. The sse2 WUs are unreliable and often fail after wasting a LOT of CPU time.

I see the same thing. My Ryzen 1700 fails on most of the SSE2, but my Ryzen 2700 runs them OK. Both machines are on Ubuntu 18.04.

I did not know the Ryzen 1700 had an SSE2 problem, but this is the only SSE2 project I have. It runs everything else fine. I suppose the problem will correct itself after the selection is made, so it may not be worth fixing at this point.
8) Message boards : News : New organism (Message 1403)
Posted 3 Dec 2018 by Jim1348
We never had a GPU application available.

OK, I must have been thinking of the optimized apps, which you have already incorporated. They are working well for me; about the same on Windows as Linux.
9) Message boards : News : New organism (Message 1400)
Posted 3 Dec 2018 by Jim1348
You have used GPUs in the past. But as I understand it, you didn't have enough work for them, and the output files were too big anyway.

Might this now change? Could you consider GPUs again?
10) Message boards : Number crunching : Optimization (Message 1078)
Posted 30 May 2017 by Jim1348
But I wonder why the Ryzen isn't faster than the old i5, even with the optimized app and 600 MHz more clock speed. I saw this also on other Projects.
Seems to be that most of the apps from all projects are optimized for Intel.

It is more because with the i5-3570 you are using a full core, whereas with the Ryzen you are using a virtual core. So it is not bad at all, though you may be right that it is optimized for Intel.
11) Message boards : Number crunching : Optimization (Message 1035)
Posted 9 Apr 2017 by Jim1348
OK, I did that, but now get the message:

Message from server: Your app_info.xml file doesn't have a usable version of gene@home PC-IM.

Also, it won't download more work, since it says the computer has reached the daily quota of 1 task.
12) Message boards : Number crunching : Optimization (Message 1033)
Posted 9 Apr 2017 by Jim1348
New app version is ready! It is available at the same place as usual: In order to install it, do following steps:
- finish or abort all existing tasks (they will be aborted after install automatically);
- stop BOINC;
- unpack selected version to project's directory (path like C:\Users\All Users\BOINC\projects\gene.disi.unitn.it_test\ on Windows, and /var/lib/boinc-client/projects/gene.disi.unitn.it_test on Linux);
- start BOINC again
After doing this, app name should change to "Gene Network Application (Opti v1.2)". You should also see message "Found app_info.xml; using anonymous platform" in event log for TN-Grid project.

I did all that, using the SSE2 version for Linux on my i7-4770, and got that message on reboot. But I am getting only errors.
13) Message boards : Number crunching : Optimization (Message 1023)
Posted 2 Apr 2017 by Jim1348
Outstanding, I will try the new CPU app on both Windows and Ubuntu as a baseline for the GPU app.
14) Message boards : Number crunching : Optimization (Message 1021)
Posted 2 Apr 2017 by Jim1348
Is a GPU version still under consideration? I get the impression that it would work, with all the programming talent that Daniel (and others) bring to the project, but there may not be enough work to support it.

Where are we on that?
15) Message boards : Wish List : Add the project to Gridcoin whitelist and create a program for graphics cards (Message 720)
Posted 3 Jan 2017 by Jim1348

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