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+--- Thread: Hashcat not using GPU? (/thread-10214.html)
Hashcat not using GPU? - MagnaMarsBar - 07-13-2021
I am using a Windows 10 computer with an NVidia graphics card.
I notice when I run my hashcat.exe and go to the task manager, the GPU is at 0% for the hashcat.exe in the task manager.
When I run "./hashcat.exe -I", I get:
Code:
CUDA Info:
==========
CUDA.Version.: 11.4
Backend Device ID #1 (Alias: #2)
Name...........: NVIDIA GeForce GTX 1060
Processor(s)...: 10
Clock..........: 1670
Memory.Total...: 6144 MB
Memory.Free....: 5228 MB
OpenCL Info:
============
OpenCL Platform ID #1
Vendor..: NVIDIA Corporation
Name....: NVIDIA CUDA
Version.: OpenCL 3.0 CUDA 11.4.56
Backend Device ID #2 (Alias: #1)
Type...........: GPU
Vendor.ID......: 32
Vendor.........: NVIDIA Corporation
Name...........: NVIDIA GeForce GTX 1060
Version........: OpenCL 3.0 CUDA
Processor(s)...: 10
Clock..........: 1670
Memory.Total...: 6144 MB (limited to 1536 MB allocatable in one block)
Memory.Free....: 5440 MB
OpenCL.Version.: OpenCL C 1.2
Driver.Version.: 471.11
OpenCL Platform ID #2
Vendor..: Intel(R) Corporation
Name....: Intel(R) OpenCL
Version.: OpenCL 2.1
Backend Device ID #3
Type...........: GPU
Vendor.ID......: 8
Vendor.........: Intel(R) Corporation
Name...........: Intel(R) UHD Graphics 630
Version........: OpenCL 2.1 NEO
Processor(s)...: 24
Clock..........: 1100
Memory.Total...: 6493 MB (limited to 3246 MB allocatable in one block)
Memory.Free....: 6429 MB
OpenCL.Version.: OpenCL C 2.0
Driver.Version.: 25.20.100.6577
Backend Device ID #4
Type...........: CPU
Vendor.ID......: 8
Vendor.........: Intel(R) Corporation
Name...........: Intel(R) Core(TM) i7-8750H CPU @ 2.20GHz
Version........: OpenCL 2.1 (Build 0)
Processor(s)...: 12
Clock..........: 2200
Memory.Total...: 16234 MB (limited to 4058 MB allocatable in one block)
Memory.Free....: 16170 MB
OpenCL.Version.: OpenCL C 2.0
Driver.Version.: 7.6.0.1125Based on the information above, I would want to run -D 2 since the type is GPU. The command I use to run it all is
Code:
./hashcat.exe -D 2 -m 2500 -w 3 -a wpa.hccapx worklist.txt ?d?d?dAnd once it runs, I get:
Code:
* Device #3: Unstable OpenCL driver detected!
This OpenCL driver may fail kernel compilation or produce false negatives.
You can use --force to override, but do not report related errors.
nvmlDeviceGetFanSpeed(): Not Supported
CUDA API (CUDA 11.4)
====================
* Device #1: NVIDIA GeForce GTX 1060, 5228/6144 MB, 10MCU
OpenCL API (OpenCL 3.0 CUDA 11.4.56) - Platform #1 [NVIDIA Corporation]
=======================================================================
* Device #2: NVIDIA GeForce GTX 1060, skipped
OpenCL API (OpenCL 2.1 ) - Platform #2 [Intel(R) Corporation]
=============================================================
* Device #3: Intel(R) UHD Graphics 630, skipped
* Device #4: Intel(R) Core(TM) i7-8750H CPU @ 2.20GHz, skipped
Minimum password length supported by kernel: 8
Maximum password length supported by kernel: 63
Hashes: 2 digests; 1 unique digests, 1 unique salts
Bitmaps: 16 bits, 65536 entries, 0x0000ffff mask, 262144 bytes, 5/13 rotates
Optimizers applied:
* Zero-Byte
* Single-Hash
* Single-Salt
* Slow-Hash-SIMD-LOOP
Watchdog: Temperature abort trigger set to 90c
Host memory required for this attack: 175 MB
Dictionary cache hit:
* Filename..: worklist.txt
* Passwords.: 318047
* Bytes.....: 3261360
* Keyspace..: 318047000
Driver temperature threshold met on GPU #1. Expect reduced performance.In the above code, the key part I'm curious about is why device 2 is being skipping and running device 1 when I specified -D 2?
I am new to hashcat so it all is a bit unfamiliar right now but I do appreciate any support anyone can give. Thank you for your time and reading my post.