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Topic
Board Development & Technical Discussion
Re: BitCrack using several graphic cards simultaneously
by
citb0in
on 06/11/2022, 16:24:21 UTC
How do you force BitCrack to use several available graphic cards?

Code:
./cuBitCrack --help
Quote
BitCrack OPTIONS [TARGETS]
Where TARGETS is one or more addresses

--help                  Display this message
-c, --compressed        Use compressed points
-u, --uncompressed      Use Uncompressed points
--compression  MODE     Specify compression where MODE is
                          COMPRESSED or UNCOMPRESSED or BOTH
-d, --device ID         Use device ID
-b, --blocks N          N blocks
-t, --threads N         N threads per block
-p, --points N          N points per thread
-i, --in FILE           Read addresses from FILE, one per line
-o, --out FILE          Write keys to FILE
-f, --follow            Follow text output
--list-devices          List available devices
--keyspace KEYSPACE     Specify the keyspace:
                          START:END
                          START:+COUNT
                          START
                          :END
                          :+COUNT
                        Where START, END, COUNT are in hex format
--stride N              Increment by N keys at a time
--share M/N             Divide the keyspace into N equal shares, process the Mth share
--continue FILE         Save/load progress from FILE

The option --list-devices lists correctly the installed and available GPUs. But when running BitCrack only uses a single one. With the option -d we can specify which GPU to use, but again it only uses that particular selected GPU. I tried to use those arguments, but it didn't change anything

-d 0,1
-d 0 1
-d 0 -d 1

BitCrack only uses one of graphic cards installed. Can anyone tell me how to make BitCrack capable of using several GPUs ? I also tried this version, but same effects, nothing helped.