Why is crossfire slower than a single card?

[rageltman]

try with oclHashcat-lite v0.08 pls

Thanks Atom, but that fails even worse.

GPU-Loops: 1024
GPU-Accel: 160
Password lengths range: 4 - 55
Platform: AMD compatible platform found
Watchdog: Temperature limit set to 90c
Device #1: Barts, 1024MB, 0Mhz, 12MCU
Device #2: Barts, 1024MB, 0Mhz, 12MCU
ERROR: ./kernels/4098/m0000q_warp.Barts.64.kernel: No such file or directory

$ ./oclHashcat-lite64.bin -d1 4cf1c36009(removed 6 chars)20f2f607467beb0c ?s?s?s?s?s?s?s?s

same issue running with -d1

I'm starting to think that all the hype about ATI being better for hash analysis is a load of BS. They had horrible driver problems 12 years ago (check my nick) and they're STILL bloody incompetent. If they sell a SLI/Xfire product, then it should actually WORK that way.

Also, it appears that when using card2 in crossfire, the computational results are less than stellar. It just says every hash can be resolved with random binary output.

Does anyone on these forums use a dual ATI setup on a laptop with linux? Pentesters usually can't send hashes to a third party for analysis (clients dont even like them leaving the premises on an encrypted disk) so i'm probably not the first one to try and pack a nuclear solution to this problem in a portable manner.