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Search Results
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Thread: Works with OpenCL but not CUDA
Post: RE: Works with OpenCL but not CUDA
| Thanks Phil, I'll start digging. The algo is RACF KDFAES and I'll provide the code for hashcat once it works on both OpenCL and CUDA ... as to avoid the embarrassing moments ... |
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ecos |
hashcat
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2 |
1,455 |
08-26-2019, 11:20 AM |
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Thread: Works with OpenCL but not CUDA
Post: Works with OpenCL but not CUDA
| Guys, I have a custom hash module that works happily with the OpenCL API, but fails miserably with the CUDA API. Specifically, the CL compilation is ok, but the self-test fails (and indeed, it fails t... |
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ecos |
hashcat
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2 |
1,455 |
08-24-2019, 08:16 AM |
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Thread: Which 2080ti in a 4U?
Post: RE: Which 2080ti in a 4U?
| We use several Supermicro SYS-4028GR-TRT2, each with 10x 2080 TI (Asus blower version), light overclocking, and they happily work 24/7, decent temperatures and all. Well, to be fully pedantic, we have... |
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ecos |
Hardware
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8 |
4,631 |
07-10-2019, 08:17 AM |
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Thread: PCI SERR with AMD but not NVIDIA
Post: RE: PCI SERR with AMD but not NVIDIA
| Quick update: I managed to get a stable system with a lower PowerTune value (-8, works with 6990 and 290X), with some 5-7% performance loss, always keeping an eye on the total power draw reported by t... |
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ecos |
Hardware
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16 |
25,304 |
07-25-2015, 05:33 PM |
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Thread: PCI SERR with AMD but not NVIDIA
Post: RE: PCI SERR with AMD but not NVIDIA
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epixoip Wrote: (07-06-2015, 12:25 PM)
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The 6990 draws like 125-150W more than the 290X, so yeah.
Yes, we have had several such cases, which is a big reason why we've moved away from AMD and are no... |
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ecos |
Hardware
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16 |
25,304 |
07-06-2015, 01:14 PM |
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Thread: PCI SERR with AMD but not NVIDIA
Post: RE: PCI SERR with AMD but not NVIDIA
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epixoip Wrote: (07-04-2015, 10:56 PM)
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Not weird at all... Re-read what I wrote in this thread, it all makes perfect sense :)
This is actually something we're fighting with right now, as we've l... |
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ecos |
Hardware
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16 |
25,304 |
07-06-2015, 11:48 AM |
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Thread: PCI SERR with AMD but not NVIDIA
Post: RE: PCI SERR with AMD but not NVIDIA
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epixoip Wrote: (06-28-2015, 07:57 PM)
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Ah yeah, +225 would put you at well over 1500 Mhz. Should be just fine at +100, and you could probably go up to +200 without issue. But for testing purposes +... |
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ecos |
Hardware
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16 |
25,304 |
07-04-2015, 07:35 PM |
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Thread: PCI SERR with AMD but not NVIDIA
Post: RE: PCI SERR with AMD but not NVIDIA
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epixoip Wrote: (06-28-2015, 01:12 PM)
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Just looks like an ASIC hang. +225 clock offset is rather aggressive (depending on the factory clocking), try reducing it to 200.
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Oh, it was one of the "... |
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ecos |
Hardware
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16 |
25,304 |
06-28-2015, 01:47 PM |
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Thread: PCI SERR with AMD but not NVIDIA
Post: RE: PCI SERR with AMD but not NVIDIA
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epixoip Wrote: (06-27-2015, 11:51 PM)
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That's a sufficiently large PSU, but I'm still kind of leaning towards power. Here's why:
With two cards that violate the PCI-e spec, you receive errors. W... |
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ecos |
Hardware
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16 |
25,304 |
06-28-2015, 09:33 AM |
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Thread: PCI SERR with AMD but not NVIDIA
Post: RE: PCI SERR with AMD but not NVIDIA
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epixoip Wrote: (06-26-2015, 10:24 PM)
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Sounds power-related to me. How big are the power supplies in these systems, and how many GPUs per system?
Most of the boards produced by Supermicro and Ty... |
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ecos |
Hardware
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16 |
25,304 |
06-27-2015, 04:39 PM |
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Thread: PCI SERR with AMD but not NVIDIA
Post: PCI SERR with AMD but not NVIDIA
| Hi,
Just wandering if anybody else has encountered this crap:
I have a Supermicro system configuration with X8DTG-DF motherboard, say about 40 servers. They all use AMD HD 6990 and run heavy loa... |
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ecos |
Hardware
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16 |
25,304 |
06-26-2015, 08:09 PM |
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Thread: Strange Performance Issue / R290X
Post: RE: Strange Performance Issue / R290X
| Different card tested, same result. Definitely something weird. |
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ecos |
Hardware
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9 |
16,656 |
04-08-2014, 05:54 PM |
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Thread: Strange Performance Issue / R290X
Post: RE: Strange Performance Issue / R290X
| got your point, but it is the same physical card which has a better performance on system #1 and lower on system #2. I have some more R290X cards, I'll test with another one tomorrow and post the resu... |
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ecos |
Hardware
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9 |
16,656 |
04-03-2014, 10:20 AM |
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Thread: Strange Performance Issue / R290X
Post: RE: Strange Performance Issue / R290X
| yep, could be. but the 6990 has the same performance in both systems ... only it is gen2 and not gen3. i'll go play with the bios settings, hope for some dumb luck :) |
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ecos |
Hardware
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9 |
16,656 |
04-02-2014, 03:27 PM |
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Thread: Strange Performance Issue / R290X
Post: RE: Strange Performance Issue / R290X
| The fan reading is correct, we use the R290X without the case and without the fan. The case is 1U and there is a shroud in place to keep the airflow on the heatsink and we start the 4x dedicated loud ... |
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ecos |
Hardware
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9 |
16,656 |
04-02-2014, 08:34 AM |
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Thread: Strange Performance Issue / R290X
Post: RE: Strange Performance Issue / R290X
| Have already run --autofix on both systems (when using the R290X). Both perfectly identical, same init.
6990:
aticonfig --pplib-cmd "get activity"
Current Activity is Core Clock: 830MHZ
Memory C... |
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ecos |
Hardware
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9 |
16,656 |
04-01-2014, 02:48 PM |
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Thread: Strange Performance Issue / R290X
Post: Strange Performance Issue / R290X
| I am facing a weird problem with the R290X performance on a newer Intel chipset. I hope I just did something wrong and I will quickly be pointed in the right direction :)
I have used two test systems... |
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ecos |
Hardware
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9 |
16,656 |
03-31-2014, 09:57 PM |
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Thread: Review - AMD Radeon R9 290X
Post: RE: Review - AMD Radeon R9 290X
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magnum Wrote: (02-17-2014, 07:25 PM)
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I get real-life speeds (for a single hash) on par with the benchmarks, and disregarding the exact figure it's not fluctuating much. Are you not using the -n op... |
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ecos |
Hardware
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75 |
215,984 |
02-18-2014, 12:00 PM |
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Thread: Review - AMD Radeon R9 290X
Post: RE: Review - AMD Radeon R9 290X
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epixoip Wrote: (02-17-2014, 03:46 AM)
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benchmark mode is single hash brute force. accel/loops setting, attack mode, word length, keyspace, number of hashes, etc all impact the real-world performanc... |
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ecos |
Hardware
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75 |
215,984 |
02-17-2014, 04:10 PM |
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Thread: Review - AMD Radeon R9 290X
Post: RE: Review - AMD Radeon R9 290X
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Quote:
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Having done that you can also OC the card to 1100/1350 or so, with no problems.
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--> Before I go for the overclocking option, I would very much like to see what I did wrong before. Also... |
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ecos |
Hardware
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75 |
215,984 |
02-17-2014, 12:33 AM |
