I just got two new GTX980's today and running my old 580ti via 1x to 16x riser. PLaying around with hashcat and came across an issue relating to this post, let me know if i should put elsewhere. I get the theory on why things slow down at as we reduce the workload, but out of the three cards to choose from cudaHashcat v1.31 keeps seemingly choosing to finish the last leg on the weakest card of the 3 making it painfully slow. Why? Is there any way I can change this or can you consider making a small tweak to the logic in a future update?
Code:
$ ./cudaHashcat64.bin -m 2811 -a 0 nothing2seehere.hashes cracked_pass.txt -r ../customRules/1.rule -o nothing2seehere.cracked --remove --gpu-async --gpu-accel=80 --gpu-loops=1024
cudaHashcat v1.31 starting...
Device #1: GeForce GTX 980, 4095MB, 1367Mhz, 16MCU
Device #1: WARNING! Kernel exec timeout is not disabled, it might cause you errors of code 702
Device #2: GeForce GTX 980, 4095MB, 1367Mhz, 16MCU
Device #3: GeForce GTX 560 Ti, 1023MB, 1700Mhz, 8MCU
Hashes: 251762 hashes; 251762 unique digests, 251730 unique salts
Bitmaps: 21 bits, 2097152 entries, 0x001fffff mask, 8388608 bytes
Rules: 181
Applicable Optimizers:
* Zero-Byte
* Precompute-Init
* Early-Skip
* Not-Iterated
Watchdog: Temperature abort trigger set to 90c
Watchdog: Temperature retain trigger set to 80c
Device #1: Kernel ./kernels/4318/m02810_a0.sm_52.64.ptx
Device #1: Kernel ./kernels/4318/bzero.64.ptx
Device #2: Kernel ./kernels/4318/m02810_a0.sm_52.64.ptx
Device #2: Kernel ./kernels/4318/bzero.64.ptx
Device #3: Kernel ./kernels/4318/m02810_a0.sm_21.64.ptx
Device #3: Kernel ./kernels/4318/bzero.64.ptx
Cache-hit dictionary stats cracked_pass.txt: 1142036 bytes, 126254 words, 22851974 keyspace
INFO: approaching final keyspace, workload adjusted
[s]tatus [p]ause [r]esume [b]ypass [q]uit => s
Hashes: 251762 hashes; 251762 unique digests, 251730 unique salts
Bitmaps: 21 bits, 2097152 entries, 0x001fffff mask, 8388608 bytes
Rules: 181
Applicable Optimizers:
* Zero-Byte
* Precompute-Init
* Early-Skip
* Not-Iterated
Watchdog: Temperature abort trigger set to 90c
Watchdog: Temperature retain trigger set to 80c
Device #1: Kernel ./kernels/4318/m02810_a0.sm_52.64.ptx
Device #1: Kernel ./kernels/4318/bzero.64.ptx
Device #2: Kernel ./kernels/4318/m02810_a0.sm_52.64.ptx
Device #2: Kernel ./kernels/4318/bzero.64.ptx
Device #3: Kernel ./kernels/4318/m02810_a0.sm_21.64.ptx
Device #3: Kernel ./kernels/4318/bzero.64.ptx
Cache-hit dictionary stats acne_cracked_pass.txt: 1142036 bytes, 126254 words, 22851974 keyspace
INFO: approaching final keyspace, workload adjusted
[s]tatus [p]ause [r]esume [b]ypass [q]uit => s
Session.Name...: cudaHashcat
Status.........: Running
Rules.Type.....: File (../customRules/1.rule)
Input.Mode.....: File (cracked_pass.txt)
Hash.Target....: File (nothing2seehere.hashes)
Hash.Type......: IPB2+, MyBB1.2+
Time.Started...: Sat Dec 27 18:50:36 2014 (2 mins, 30 secs)
Time.Estimated.: Sat Dec 27 19:37:54 2014 (44 mins, 44 secs)
Speed.GPU.#1...: 3758 H/s
Speed.GPU.#2...: 3645 H/s
Speed.GPU.#3...: 626 H/s
Speed.GPU.#*...: 8029 H/s
Recovered......: 0/251762 (0.00%) Digests, 0/251730 (0.00%) Salts
Progress.......: 305965296000/5752527415020 (5.32%)
Skipped........: 0/305965296000 (0.00%)
Rejected.......: 0/305965296000 (0.00%)
HWMon.GPU.#1...: -1% Util, 67c Temp, 40% Fan
HWMon.GPU.#2...: -1% Util, 69c Temp, 17% Fan
HWMon.GPU.#3...: -1% Util, 70c Temp, 18% Fan
[s]tatus [p]ause [r]esume [b]ypass [q]uit => s
Session.Name...: cudaHashcat
Status.........: Running
Rules.Type.....: File (../customRules/1.rule)
Input.Mode.....: File (cracked_pass.txt)
Hash.Target....: File (nothing2seehere.hashes)
Hash.Type......: IPB2+, MyBB1.2+
Time.Started...: Sat Dec 27 18:50:36 2014 (59 mins, 50 secs)
Time.Estimated.: Sat Dec 27 19:57:13 2014 (6 mins, 43 secs)
Speed.GPU.#1...: 0 H/s
Speed.GPU.#2...: 0 H/s
Speed.GPU.#3...: 628 H/s
Speed.GPU.#*...: 628 H/s
Recovered......: 806/251762 (0.32%) Digests, 806/251730 (0.32%) Salts
Progress.......: 5171375800620/5752527415020 (89.90%)
Skipped........: 4331820510/5171375800620 (0.08%)
Rejected.......: 0/5171375800620 (0.00%)
HWMon.GPU.#1...: -1% Util, 73c Temp, 44% Fan
HWMon.GPU.#2...: -1% Util, 46c Temp, 0% Fan
HWMon.GPU.#3...: -1% Util, 51c Temp, 0% Fan