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Thread: SAPPHIRE HD 7970 6GB Vapor-X Edition issue
Post: RE: SAPPHIRE HD 7970 6GB Vapor-X Edition issue
| buy a reference card next time ;) |
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epixoip |
Hardware
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7 |
14,319 |
12-12-2013, 04:09 AM |
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Thread: sapphire 7970
Post: RE: sapphire 7970
| there's nothing wrong with 78C. don't worry unless you start getting over 90C |
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epixoip |
General Help
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4 |
7,170 |
05-01-2014, 01:11 AM |
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Thread: sapb, which card (est)
Post: RE: sapb, which card (est)
| You're comparing VLIW4 to GCN, that's the big difference. I'm not familiar with the SAP B algorithm, but I think the obvious answer here is that it is better suited toward GCN than VLIW. |
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epixoip |
Old oclHashcat Support
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5 |
8,969 |
11-16-2014, 02:57 AM |
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Thread: sapb, which card (est)
Post: RE: sapb, which card (est)
| GTX 980:
Speed.GPU.#1.: 662.0 MH/s |
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epixoip |
Old oclHashcat Support
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5 |
8,969 |
11-17-2014, 12:14 AM |
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Thread: Same command, different output?
Post: RE: Same command, different output?
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temporary_user Wrote: (12-16-2012, 11:45 PM)
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Without sudo I get "Hashcat pot file: permission denied".
--
so chown your hashcat.pot |
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epixoip |
Old hashcat Support
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21 |
41,752 |
12-19-2012, 03:33 AM |
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Thread: Same command, different output?
Post: RE: Same command, different output?
| oooo, a thesis. he's one of them educated types.
does your thesis state that CUDA is inherently worthless for crypto because Nvidia hardware sucks at crypto? |
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epixoip |
Old hashcat Support
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21 |
41,752 |
01-30-2013, 02:44 PM |
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Thread: Same command, different output?
Post: RE: Same command, different output?
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forgot_my_passwd Wrote: (01-30-2013, 03:17 PM)
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Oh, I can see we've got an expert on the topic!
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Actually, yes (https://lmgtfy.com/?q=expert+jeremi+gosney).
forgot_my_passwd Wrote: (01-30-2013... |
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epixoip |
Old hashcat Support
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21 |
41,752 |
01-30-2013, 04:18 PM |
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Thread: Salted md5crypt speed question
Post: RE: Salted md5crypt speed question
| coolbry95 is correct. you have two salts, therefore each plaintext candidate needs to be hashed with each salt, cutting your effective speed in half. if you had 100 salts, your effective speed would b... |
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epixoip |
Old oclHashcat Support
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3 |
7,403 |
01-28-2014, 09:44 PM |
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Thread: salt and sha-1 oclhashcat 0.09
Post: RE: salt and sha-1 oclhashcat 0.09
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epixoip |
Very old oclHashcat-plus Support
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1 |
5,075 |
10-02-2012, 08:36 AM |
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Thread: Safe power draw
Post: RE: Safe power draw
| It's not weird behavior and it's not specific to Nvidia by any means. You need host buffers for the device buffers. When you allocate a buffer on the device, you have to allocate a buffer on the host ... |
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epixoip |
Hardware
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15 |
10,810 |
10-07-2018, 08:43 PM |
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Thread: Safe power draw
Post: RE: Safe power draw
| Oh sorry, I didn't actually address your question regarding the power supply output. So you have a 1200W PSU and are concerned about it drawing 1200W from the wall. Ok, let's talk this through.
Fir... |
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epixoip |
Hardware
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15 |
10,810 |
10-08-2018, 11:05 PM |
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Thread: Safe power draw
Post: RE: Safe power draw
| Nope, not bad for the cards at all. It's simply a matter of efficiency. 80Plus Platinum is pretty good, and it looks like your PSU is probably around 90% efficient at that load (not sure where you got... |
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epixoip |
Hardware
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15 |
10,810 |
10-09-2018, 12:30 AM |
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Thread: Safe power draw
Post: RE: Safe power draw
| Adding a large swap file will prevent Hashcat from crashing, yes. But it will be slooooooooowwwwwww. |
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epixoip |
Hardware
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15 |
10,810 |
10-12-2018, 03:45 AM |
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Thread: Ryzen OpenCL benchmarks?
Post: RE: Ryzen OpenCL benchmarks?
| AMD dropped XOP from their ISA and failed to add 256bit registers, so Ryzen will be seriously shitty for password cracking. Much slower than Intel CPUs with AVX2. |
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epixoip |
Hardware
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26 |
31,272 |
03-06-2017, 05:18 PM |
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Thread: Ryzen OpenCL benchmarks?
Post: RE: Ryzen OpenCL benchmarks?
| Are you sure? Last I saw they had dropped XOP and hadn't added any 256-bit registers. Now that I'm searching for this, I see lots of mixed reports: some say it has AVX2, other say it has no AVX2. I ca... |
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epixoip |
Hardware
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26 |
31,272 |
03-06-2017, 11:09 PM |
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Thread: Ryzen OpenCL benchmarks?
Post: RE: Ryzen OpenCL benchmarks?
| Huh, yeah that's super strange. It's almost like AVX2 emulation. |
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epixoip |
Hardware
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26 |
31,272 |
03-07-2017, 01:39 AM |
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Thread: Ryzen OpenCL benchmarks?
Post: RE: Ryzen OpenCL benchmarks?
| Ryzen certainly wasn't first, heh. Does nobody remember VIA Padlock? I used to love using Via Nano CPUs in my Linux firewalls and SSL terminators. |
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epixoip |
Hardware
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26 |
31,272 |
03-12-2017, 07:28 PM |
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Thread: Ryzen OpenCL benchmarks?
Post: RE: Ryzen OpenCL benchmarks?
| Password cracking is an embarrassingly-parallel problem and acceleration comes from parallelism. AVX2 with 256-bit registers enables us to operate on eight 32-bit words or four 64-bit words simultaneo... |
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epixoip |
Hardware
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26 |
31,272 |
05-11-2017, 05:32 PM |
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Thread: Ryzen OpenCL benchmarks?
Post: RE: Ryzen OpenCL benchmarks?
| 8 threads * 8-way SIMD = 64 32-bit ops in parallel
16 threads * 4-way SIMD = 64 32-bit ops in parallel
32 threads * 4-way SIMD = 128 32-bit ops in parallel
24 threads * 8-way SIMD = 192 32-bit ops ... |
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epixoip |
Hardware
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26 |
31,272 |
05-13-2017, 07:53 PM |
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Thread: Ryzen OpenCL benchmarks?
Post: RE: Ryzen OpenCL benchmarks?
| Yep, you can argue other use cases all you want, it's just going to fall on deaf ears. These are the hashcat forums, all we give a fuck about here is password cracking performance, and Ryzen's fake AV... |
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epixoip |
Hardware
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26 |
31,272 |
05-14-2017, 04:18 AM |
