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CPU device not available
f4nthomas Offline
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#1
04-28-2020, 10:06 AM
Hi folks,

For some reason, my hashcat can use only GPU, CPU seems to be "not available". Hashcat does not see it within the available devices.
Do you have any clue why? My CPU isn't old (i9-9900KF), and drivers should be up-to-date. I tried to explicitly enable it along with GPU using a parameter "-D 1,2"  and also with "-d 1,2" ) for benchmarks in any combination, but without success.


Code:
[ 9:55:56] C:\hashcat-5.1.0>hashcat64.exe -m 0 -D 1,2 -b hashcat (v5.1.0) starting in benchmark mode... Benchmarking uses hand-optimized kernel code by default. You can use it in your cracking session by setting the -O option. Note: Using optimized kernel code limits the maximum supported password length. To disable the optimized kernel code in benchmark mode, use the -w option. * Device #1: WARNING! Kernel exec timeout is not disabled.             This may cause "CL_OUT_OF_RESOURCES" or related errors.             To disable the timeout, see: https://hashcat.net/q/timeoutpatch OpenCL Platform #1: NVIDIA Corporation ====================================== * Device #1: GeForce RTX 2080 SUPER, 2048/8192 MB allocatable, 48MCU Benchmark relevant options: =========================== * --opencl-device-types=1,2 * --optimized-kernel-enable Hashmode: 0 - MD5 Speed.#1.........: 43729.5 MH/s (73.23ms) @ Accel:256 Loops:1024 Thr:256 Vec:4 Started: Tue Apr 28 09:56:20 2020 Stopped: Tue Apr 28 09:56:27 2020 [ 9:56:27] C:\hashcat-5.1.0> [ 9:56:30] C:\hashcat-5.1.0>hashcat64.exe -I hashcat (v5.1.0) starting... OpenCL Info: Platform ID #1   Vendor  : NVIDIA Corporation   Name    : NVIDIA CUDA   Version : OpenCL 1.2 CUDA 10.1.0   Device ID #1     Type          : GPU     Vendor ID      : 32     Vendor        : NVIDIA Corporation     Name          : GeForce RTX 2080 SUPER     Version        : OpenCL 1.2 CUDA     Processor(s)  : 48     Clock          : 1845     Memory        : 2048/8192 MB allocatable     OpenCL Version : OpenCL C 1.2     Driver Version : 436.30 [ 9:56:34] C:\hashcat-5.1.0> [ 9:56:57] C:\hashcat-5.1.0># CPU INFO: [ 9:57:03] C:\hashcat-5.1.0>wmic cpu get caption, deviceid, name, numberofcores, maxclockspeed, status Caption                                DeviceID  MaxClockSpeed  Name                                      NumberOfCores  Status Intel64 Family 6 Model 158 Stepping 13  CPU0      3600          Intel(R) Core(TM) i9-9900KF CPU @ 3.60GHz  8              OK [ 9:57:14] C:\hashcat-5.1.0>



Thank you in advance for any advice!
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philsmd Offline
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#2
04-28-2020, 11:51 AM
you need to install the drivers as mentioned in https://hashcat.net/hashcat/

https://software.intel.com/en-us/article...pu-section
current win driver at time of this writing: http://registrationcenter-download.intel..._setup.msi
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f4nthomas Offline
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#3
04-28-2020, 01:36 PM
(04-28-2020, 11:51 AM)philsmd Wrote: you need to install the drivers as mentioned in https://hashcat.net/hashcat/

https://software.intel.com/en-us/article...pu-section
current win driver at time of this writing: http://registrationcenter-download.intel..._setup.msi

Thanks, I've downloaded it, installed, then I rebooted PC, and now I got only CPU listed, the GPU is missing ... not sure if it's funny or not Big Grin . Did I do anything wrong?  This situation is weird to me, perhaps maybe it got something to do with the windows registry or something like that....

Code:
[13:29:08] C:\hashcat-5.1.0>hashcat64.exe -I -D 1,2 hashcat (v5.1.0) starting... OpenCL Info: Platform ID #1   Vendor  : Intel(R) Corporation   Name    : Intel(R) CPU Runtime for OpenCL(TM) Applications   Version : OpenCL 2.1 WINDOWS   Device ID #1     Type          : CPU     Vendor ID      : 8     Vendor        : Intel(R) Corporation     Name          : Intel(R) Core(TM) i9-9900KF CPU @ 3.60GHz     Version        : OpenCL 2.1 (Build 0)     Processor(s)  : 16     Clock          : 3600     Memory        : 8175/32702 MB allocatable     OpenCL Version : OpenCL C 2.0     Driver Version : 18.1.0.0920 [13:29:18] C:\hashcat-5.1.0>hashcat64.exe -D 1,2 -m 0 -b hashcat (v5.1.0) starting in benchmark mode... Benchmarking uses hand-optimized kernel code by default. You can use it in your cracking session by setting the -O option. Note: Using optimized kernel code limits the maximum supported password length. To disable the optimized kernel code in benchmark mode, use the -w option. OpenCL Platform #1: Intel(R) Corporation ======================================== * Device #1: Intel(R) Core(TM) i9-9900KF CPU @ 3.60GHz, 8175/32702 MB allocatable, 16MCU Benchmark relevant options: =========================== * --opencl-device-types=1,2 * --optimized-kernel-enable Hashmode: 0 - MD5 Speed.#1.........:  1630.5 MH/s (10.19ms) @ Accel:1024 Loops:1024 Thr:1 Vec:8 Started: Tue Apr 28 13:29:38 2020 Stopped: Tue Apr 28 13:29:47 2020 [13:29:47] C:\hashcat-5.1.0>hashcat64.exe -D 1,2 -d 1,2 -m 0 -b hashcat (v5.1.0) starting in benchmark mode... Benchmarking uses hand-optimized kernel code by default. You can use it in your cracking session by setting the -O option. Note: Using optimized kernel code limits the maximum supported password length. To disable the optimized kernel code in benchmark mode, use the -w option. An invalid device was specified using the --opencl-devices parameter. The specified device was higher than the number of available devices (1). Started: Tue Apr 28 13:30:52 2020 Stopped: Tue Apr 28 13:30:52 2020 [13:30:52] C:\hashcat-5.1.0>
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philsmd Offline
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#4
04-28-2020, 02:00 PM (This post was last modified: 04-29-2020, 12:55 PM by philsmd.)
Please install the nvidia driver directly from https://www.nvidia.com/Download/index.aspx

also see https://hashcat.net/faq/wrongdriver if installing the GPU driver doesn't work immediately
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f4nthomas Offline
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#5
04-28-2020, 03:47 PM
(04-28-2020, 02:00 PM)philsmd Wrote: Please install the nvidia driver directly from https://www.nvidia.com/Download/index.aspx

also see https://hashcat.net/wiki/wrongdriver if installing the GPU driver doesn't work immediately



Perfect, this worked! After installation of latest GPU Drivers I can see now both devices (CPU & GPU) listed correctly :

Code:
[15:44:14] C:\hashcat-5.1.0>hashcat64.exe -I hashcat (v5.1.0) starting... OpenCL Info: Platform ID #1   Vendor  : NVIDIA Corporation   Name    : NVIDIA CUDA   Version : OpenCL 1.2 CUDA 11.0.140   Device ID #1     Type          : GPU     Vendor ID      : 32     Vendor        : NVIDIA Corporation     Name          : GeForce RTX 2080 SUPER     Version        : OpenCL 1.2 CUDA     Processor(s)  : 48     Clock          : 1845     Memory        : 2048/8192 MB allocatable     OpenCL Version : OpenCL C 1.2     Driver Version : 445.87 Platform ID #2   Vendor  : Intel(R) Corporation   Name    : Intel(R) CPU Runtime for OpenCL(TM) Applications   Version : OpenCL 2.1 WINDOWS   Device ID #2     Type          : CPU     Vendor ID      : 8     Vendor        : Intel(R) Corporation     Name          : Intel(R) Core(TM) i9-9900KF CPU @ 3.60GHz     Version        : OpenCL 2.1 (Build 0)     Processor(s)  : 16     Clock          : 3600     Memory        : 8175/32702 MB allocatable     OpenCL Version : OpenCL C 2.0     Driver Version : 18.1.0.0920 [15:44:23] C:\hashcat-5.1.0>

Many many thanks for your time and help! Very appreciated! :-)
Have a good day!
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