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+--- Thread: oclHashcat-plus v0.10 beta 50 (/thread-1743.html)
oclHashcat-plus v0.10 beta 50 - atom - 11-08-2012
Hello Beta-Tester,
YAY! There it is!
type: feature
file: host programs
desc: added support for restore/resume
type: feature
file: host programs
desc: added support for sessions
Works with all attack modes and with stdin as well.
--
atom
RE: oclHashcat-plus v0.10 beta 50 - undeath - 11-08-2012
wow, finally resume support! The probably most missing feature in the previous versions. Great work!
RE: oclHashcat-plus v0.10 beta 50 - atom - 11-08-2012
http://paste2.org/p/2446751
RE: oclHashcat-plus v0.10 beta 50 - K9 - 11-08-2012
Wow thanks
Fan speed doesn't decrease anymore. It will stay at a highspeed even after a reboot. I don't know if it is caused by the new oclhashcat or the beta driver. It didn't happen with 0.09 and 12.10.
RE: oclHashcat-plus v0.10 beta 50 - proinside - 11-13-2012
Autotuned --gpu-accel from xx to x not present in the help
command line. Any info available about this option ?
Autotunned can be disable ?
RE: oclHashcat-plus v0.10 beta 50 - atom - 11-14-2012
Preview from the upcoming release notes. hth.
Support added for autotuning.
There is this magical -n parameter. I know you often use it, but you can also misuse it. You know the higher you set it, the faster it cracks (and the more the screen lags). But there is this (rare) case in which you can actually make it slower by setting it too high.
A little mathematical background (skip if you don't care):
The number of workload oclHashcat-plus chooses for a GPU is:
Code:
Number-of-processors * Number-of-optimal-threads * Number-of-optimal-vectorsize * Value-of-n-parameterNow imagine the result of such a calculation is 8000000 and you set -n 80. The thing I call base-power of your GPU (the part you can not tune) is 100000. On the other hand we have the keyspace we want to search. For example we have a mask ?d?d?d?d?d?d?d?d. That makes the keyspace = 100000000 (10^8). So we have 100000000 / 8000000 = 12.5. That's fine, we can call the kernel 12.5 (actually 13) times before the keyspace is exhausted.
Now imagine you have two cards of that speed. We add up the power and get 8000000 * 2 = 16000000. This time we have 100000000 / 16000000 = 6.25. That's still fine, both GPU are called 7 times. Now what happens if we set from -n 80 to -n 800? Right, the GPU power jumps from 16000000 to 160000000. So we have 100000000 / 160000000 = 0,625. Because this value is smaller than 1, the dispatcher can not assign enough work to both GPU. One of both GPU will not get used at all.
This demonstrates a case when using too high of a -n value will crack slower than a lower -n value. If you ever wondered why not all your GPUs are used, this might be the cause.
The new autotune function helps you with that. It cannot be disabled --it will automatically tune down your -n amplifier in case you set it too high.
RE: oclHashcat-plus v0.10 beta 50 - proinside - 11-14-2012
Ok, understood. It's very rare use anything above -n 80... sometimes a lower
value, depending of the algo, or the number of hashes.
Thanks for the explanation about the target of this function, atom.