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+--- Thread: i want help hashcat run crack with Multi-GPU (/thread-13366.html)
i want help hashcat run crack with Multi-GPU - harrychung - 09-04-2025
Hello bros!
I have a problem that needs expert advice.
I am searching for the password of a blockchain wallet, and I rented GPU 5090 on vast.ai
For example, I rented 8 GPU 5090 and run with a file containing passwords in the form: mask_password.txt
containing password combinations of full name plus variables: ?d?d ?d?d?d ?d?d?d?d ?d?d?d?d?d ?d?d?d?d?d?d
At the beginning, I only see 1 GPU working, because the mask is short and small like: ?d?d up to ?d?d?d?d
and the waiting time can be 1 day to 2 days, then it can reach longer masks than 6d or 8d
then the other GPUs will work together and I have speed X
I want to shorten the time more, by activating all 8 GPUs to run, and can split the file: mask_password.txt into 8 parts so that each GPU receives 1 part of the work, so all 8 GPUs run immediately with short masks to shorten the time and get speed X from the beginning.
I have researched many sources but have not been able to implement it successfully, please help me bros.
Thank you
RE: i want help hashcat run crack with Multi-GPU - Chick3nman - 09-05-2025
You cannot accelerate this in the way you are thinking, the reason the GPUs are not working with the short masks is because there's nothing for them to be doing. There isn't enough work to feed them. This is a common misconception/failure point when people try to use large GPU rigs. More GPUs is not always faster, and in many cases it can be slower or much harder to actually utilize.