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Date: Mon, 22 Jan 2024 18:10:17 +0100
From: Solar Designer <solar@...nwall.com>
To: john-users@...ts.openwall.com
Subject: Re: Using OpenCL with Radeon RX 6800 XT on Linux
On Mon, Jan 22, 2024 at 01:42:09PM +0900, SHINODA, Daisuke wrote:
> I would like to use John The Ripper using OpenCL with Radeon RX 6800 XT
> on Linux. But I cannot.
>
> [CPU] AMD Ryzen 9 3900
> [GPU] AMD Radeon RX 6800 XT
> [OS] Linux Mint 21.2 Cinnamon 64 bit
> [GPU Driver] amdgpu-install_5.7.50702-1_all.deb
>
> I have compiled John The Ripper like the following.
Are you using our latest off GitHub?
> $ ./john --format=ZIP-opencl --test
> No OpenCL devices found
> I have checked if OpenCL is working like the following.
>
> $ clinfo
> Number of platforms: 1
> Platform Profile: FULL_PROFILE
> Platform Version: OpenCL 2.1 AMD-APP (3590.0)
> Platform Name: AMD Accelerated Parallel
> Processing
> Platform Vendor: Advanced Micro Devices, Inc.
> Platform Extensions: cl_khr_icd
> cl_amd_event_callback
>
>
> Platform Name: AMD Accelerated Parallel
> Processing
> Number of devices: 0
> $
You have found out that OpenCL is _not_ working - you have 0 devices
there, including when probing via clinfo. So the problem is not
limited to John the Ripper.
I don't know what exactly it is, but maybe you're missing an ICD file
for the "driver" under /etc/OpenCL/vendors - but I guess the package was
supposed to provide it? Also, since /opt/rocm-5.7.2 and its
subdirectories are not normally on the system's library search paths,
you might need "export LD_LIBRARY_PATH=/opt/rocm-5.7.2/lib" or such.
These are just some guesses, which could as well be wrong.
Hopefully someone else who tried specifically
amdgpu-install_5.7.50702-1_all.deb or similar could provide more
specific advice.
Alexander
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