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+--- Thread: Detection of multiple CPU (/thread-6409.html)
Detection of multiple CPU - MackWage - 03-20-2017
If you have OpenCL runtime installed and have two of the same processors, does hashcat report both separately?
When I run hashcat -I, the CPU section is:
Code:
Platform ID #1
Vendor : Intel(R) Corporation
Name : Intel(R) OpenCL
Version : OpenCL 1.2 LINUX
Device ID #1
Type : CPU
Vendor ID : 8
Vendor : Intel(R) Corporation
Name : Intel(R) Xeon(R) CPU E5-2630 v3 @ 2.40GHz
Version : OpenCL 1.2 (Build 25)
Processor(s) : 32
Clock : 2400
Memory : 16077/64309 MB allocatable
OpenCL Version : OpenCL C 1.2
Driver Version : 1.2.0.25However I have two of the same CPU. If I do a cat /proc/cpuinfo, I see all 32 CPU represented correctly.
If I run a benchmark, it shows the same OpenCL device output which makes it seem as if it is using a single CPU chip. However I didn't know if maybe OpenCL was just reporting both CPUs as the same device?
Code:
hashcat --opencl-platform=1 -b
hashcat (v3.40-49-g20057d8) starting in benchmark mode...
OpenCL Platform #1: Intel(R) Corporation
========================================
* Device #1: Intel(R) Xeon(R) CPU E5-2630 v3 @ 2.40GHz, 16077/64309 MB allocatable, 32MCU
OpenCL Platform #2: NVIDIA Corporation, skipped or no OpenCL compatible devices found
Hashtype: MD4
Speed.Dev.#1.....: 2077.8 MH/s (15.95ms)
Hashtype: MD5
Speed.Dev.#1.....: 1334.5 MH/s (24.85ms)RE: Detection of multiple CPU - MackWage - 03-20-2017
Wow I'm an idiot. Just noticed the line which cleared says 32 processors. :-D
Processor(s) : 32
RE: Detection of multiple CPU - epixoip - 03-20-2017
Yeah. OpenCL only exposes one CPU "device" to the application that represents all physical and logical processing cores. It's actually much better that way, very smart way to do it.