Date: Thu, 11 Aug 2011 05:56:49 -0700 (PDT) From: firstname lastname <psykosonik_frequenz@...oo.com> To: john-users@...ts.openwall.com Subject: JTR MPI in Virtual Machine - Stats Prob Hello Alexander and others, I am new to the mailing list here. Greetings to all. I am trying to setup JTR in an Ubuntu Virtual Machine with the MPI Patch. The problem is, when I run, ./john --test, I don't see any difference in the real c/s values. It increases only the virtual c/s. Here are the details: Hardware: Intel core i7 Q2630M (2.0 Ghz) 4 GB RAM Host OS: Windows Seven Home 64 bit Guest OS: Ubuntu 11.04 32-bit running as a Virtual Machine in a VMWare Workstation. I installed MPI support by installing mpich2: apt-get install mpich2 I downloaded the precompiled MPI version of JTR. For testing purposes, I picked JTR 1.7.3_mpi from here: http://www.bindshell.net/tools/johntheripper/john-126.96.36.199-mpi8.tar.gz I compiled it using make clean linux-x86-sse2 after this, when I run benchmarks, here are my results: ./john --format=DES --test Benchmarking Traditional DES [128/128 BS SSE2]... DONE Many salts: 2512K c/s real, 2537 c/s virtual Only one salt: 2101K c/s real, 2118 c/s virtual and with MPI, mpirun -np 4 ./john --format=DES --test Benchmarking Traditional DES [128/128 BS SSE2]... DONE Many salts: 2512K c/s real, 10245K c/s virtual Only one salt: 2108K c/s real, 8448K c/s virtual As you can see, there is no change in the real c/s values, however the expected values are showing up under virtual c/s. I also checked the number of processors using, cat /proc/cpuinfo | grep processor output: processor: 0 I am wondering, if this problem is due to any of the following reasons: I am running JTR inside a Virtual Machine. It reports, 0 processors. There's no change in the real c/s value. Please let me know, where I am going wrong with this and if you need more information in order to point me in the right direction. Regards, NeonFlash
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