09-06-2015, 05:03 PM
(09-06-2015, 04:29 PM)boylin Wrote: Anyone know how i can use GPU & CPU at the same time in oclHashcat?
Well you could split the job and have the GPU work on 77.73% of the keyspace and the CPU on 22.27% (that's what 171kH/s and 49kH/s work out to.
Then use skip and limit options to specify what parts of the job to work on, i.e. keyspace is 4586471424, split as above is 3564939153 and 1021532272 (both rounded up so as not to leave a gap)
tell oclHashcat to run 0%-77.73% and hashcat 77.73%-100% and they should exhaust their keyspaces at the same time unless there's a hit first.
oclhashcat64 -m 2500 -w 3 -a 3 -l 3564939153 1.hccap -1 abcdefghjklmnpqrstuvwxyz ?1?1?1?1?1?1?1?1 -o found.txt
Use -s 85558539654 for CPU hashcat (uses skip parameter slightly different):
hashcat-cli64 -m 2500 -a 3 -s 85558539654 1.hccap -1 abcdefghjklmnpqrstuvwxyz ?1?1?1?1?1?1?1?1 -o found.txt
See, starts at 77.73%:
Input.Mode: Mask (?1?1?1?1?1?1?1?1) [8]
Index.....: 0/1 (segment), 110075314176 (words), 0 (bytes)
Recovered.: 0/1 hashes, 0/1 salts
Speed/sec.: - plains, 2.67k words
Progress..: 85558548890/110075314176 (77.73%)
Running...: 00:00:00:04