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could you try this for calc time about your 24 2080ti gpu for 100 bit
0314AA23C847D86CE1FCDC4B3E0524F741FDE2AC4B38B522ED2E3B77CF500D5718
and you can use client server or single system with gpuid 0,1,2,3 to 24 command
and just run and you will have estimate time, could update me your estimate time ?
The estimation for 100bit key with 24x2080ti is approximately 24 hours.
24x2080ti has 29500MJump/sec, so 2^(100/2+1.15) / 29500Mjumps/sec --> 24 hours