Short Wordlists with 8 GPUs

[pHaze]

Code:
./oclHashcat64.bin -a 0 -m 2500 -d 2 -w 3 hashcat.hccap rockyou1k.txt -r rules/best64.rule

vs

Code:
./hashcat-cliAVX2.bin rockyou1k.txt -r rules/best64.rule --stdout | ./oclHashcat64.bin -a 0 -m 2500 -d 2 -w 3 hashcat.hccap

those are different. Rules are run in the gpu, when you run the rules infront of the pipe hashcats initial candidates are already multiplied by the rules before they hit the gpu

OK thanks Kartan that makes sense. So it looks like with a small 10,000 word list the only way to get multiple GPU's working on it is to split the hashes across 8 files and then launch 8 processes of cudaHashcat and get each to specify the GPU to use.