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+--- Thread: -1% utilization issue with cudahashcat (/thread-2513.html)
-1% utilization issue with cudahashcat - cudanoob - 08-12-2013
I've been looking around to see if anyone else is having the same issue as me for a while now with no success. Im running Ubuntu 12.04 with 2 geforce 9500 gts and when I run cudahashcat on a EPA my gpus are showing a -1% utilization. I checked tuner my nvidia settings and seen that one gpu is running at 20% and the other at 2%. Why is it showing -1% and only cracking at a combined speed of 3400/s? And I have also noticed that my gpu is being autotuneddown to 1.
RE: -1% utilization issue with cudahashcat - epixoip - 08-12-2013
not sure about why it's reporting -1%, but all the other issues (autotuned to 1, low utilization) indicate you are not giving it enough work to do.
RE: -1% utilization issue with cudahashcat - cudanoob - 08-12-2013
(08-12-2013, 03:28 AM)epixoip Wrote: not sure about why it's reporting -1%, but all the other issues (autotuned to 1, low utilization) indicate you are not giving it enough work to do.
Could I be putting the command in wrong? Here's what I'm putting in. ./cudaHashcat-plus64.bin -m 2500 -r rules/best64.rule /home/ninjabox/test.hccap /path to word list.txt
RE: -1% utilization issue with cudahashcat - atom - 08-12-2013
The -1% means that the API provided by nvidia does not allow the reading of the GPU utilization. This is not oclHashcat-*'s fault, blame nvidia.
The utilization is like epixoip said, you're not providing enough work. Make sure you have enough entries in your wordlist (multiple millions). Also try adding -u 4096
RE: -1% utilization issue with cudahashcat - cudanoob - 08-13-2013
That helped a little bit thank you. Could my drivers be keeping me from cracking faster? Or is it just that wpa is so much slower than md5?
RE: -1% utilization issue with cudahashcat - atom - 08-14-2013
Yes, WPA is A LOT slower than raw MD5
See benchmark tables to get an idea: https://hashcat.net/oclhashcat-plus/#performance
RE: -1% utilization issue with cudahashcat - cudanoob - 08-14-2013
That confirms my thoughts about a new pair of graphic cards. Thank you.