Posts by PC Gaming Master Race
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1) Message boards : Number crunching : FMA problems (Ryzen and others?) (Message 1129)
Posted 18 Oct 2017 by PC Gaming Master Race
I have been crunching on a gridcoin pool for a month or so, so the rac you see on this account of course is nonsense, anyway, the error rate on my Ryzen CPU is almost 0, right now for example my host page shows me 581 Valid WUs and only 1 Error.

I have no idea what changed in these weeks, I did not change anything in my pc and I only updated the bios back in august.

Any update from the admin of the project on this problem?
2) Message boards : News : Another experiment on E. coli (Message 1128)
Posted 18 Oct 2017 by PC Gaming Master Race
Confirming I received them, they are much quicker than the Vitis vinifera WUs.
Will the science page on the homepage updated with the % of work done?
3) Message boards : Number crunching : FMA problems (Ryzen and others?) (Message 1112)
Posted 20 Aug 2017 by PC Gaming Master Race
After more WUs I had some errors, not a lot, but most FMA failed. Meh, I wonder what causes them. And why only on this project.
4) Message boards : Number crunching : FMA problems (Ryzen and others?) (Message 1111)
Posted 18 Aug 2017 by PC Gaming Master Race
Update: some FMA WUs failed. What I noticed is that they all failed within a minute from each other, like if something in that minute made them fail.
I was just playing a game, nothing else, the WUs of the other projects are fine anyway so it is something related to this project.
The error is different from the SSE2 ones that errored:

Unhandled Exception Detected... - Unhandled Exception Record - Reason: Privileged Instruction (0xc0000096) at address 0x00000000004f5458 Engaging BOINC Windows Runtime Debugger...


Now I received a bunch of AVX ones, let's see what happen with them
5) Message boards : Number crunching : FMA problems (Ryzen and others?) (Message 1110)
Posted 18 Aug 2017 by PC Gaming Master Race
I update my BIOS, things improved a lot.

AMD Ryzen 1700
ASUS Prime B350 Plus, updated to 806 BIOS version, AGESA is now 1.0.0.6a

The only WU erroring out now are some the SSE2 ones. Randomly during the elaboration some error out (but most successfully complete), the errors are always similar:

Unhandled Exception Detected... - Unhandled Exception Record - Reason: Access Violation (0xc0000005) at address 0x00000000004f5845 read attempt to address 0x05289720 Engaging BOINC Windows Runtime Debugger...


Other WUs have no problems, the FMA ones are perfectly fine and valid, also some SSE2 are successfully completed and valid.

Weird, by reading the thread and from my experience with the old BIOS I expected FMA giving me troubles but now with the updated BIOS they are working fine. Anyway I'll crunch more, let's see what happens. In the next days I'll crunch some WUs on Linux and see what happens.
6) Message boards : Number crunching : FMA problems (Ryzen and others?) (Message 1097)
Posted 26 Jul 2017 by PC Gaming Master Race
I have an AMD Ryzen 1700, I'm trying this project, I still have to update the BIOS of my motherboard, I'll do that in the next days. Anyway, as you can see, like half of the wu I got errored, one SSE2 and most of the FMA ones errored, now I got some AVX ones, let's see what happens.
What is interesting is that so far this is the only project giving me these troubles, but well maybe it is the only one using advanced instructions so it makes sense maybe. Anyway, I'll get new WU once I update the BIOS.




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