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Date: Sun, 20 Nov 2022 11:49:06 +0100
From: magnum <magnumripper@...hmail.com>
To: john-users@...ts.openwall.com
Subject: Re: JtR v1.9.0 Jumbo 1 bleeding, fatal error with
 /dev/shm in Windows CMD and powershell

On 2022-11-18 12:59, Solar Designer wrote:
> magnum, maybe there's room for improvement by us?  Can we detect not
> running under "mpirun" and then skip MPI initialization?

I can't think of a canonical solution for that.  We might get some hints 
from environment variables but they vary between implementations.  We 
could check the name of our parent process but again there are many 
names that could be valid.  We know more after MPI_Init() but then it's 
too late.

Not sure why we'd supply custom builds with MPI enabled. Does MPI even 
work at all on Windows, with actual use of remote nodes? I'm not sure I 
have heard or read of that, ever.

magnum


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