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Ryzen + RX 580 only one device working - mfoolb - 01-30-2019
Hi,
I'm testing a new system with Ryzen 1700x and a RX 580 GPU on a The-Distribution-Which-Does-Not-Handle-OpenCL-Well (Kali) Linux with kernel 4.18 (anyone has info on rocm realease date for compatibility with 4.19?), after installing rocm i tested hashcat. It finds two device: #1 the Ryzen and #2 the GPU, if I run hashcat with as root only #2 is used (220kh/s for -m 16800, around 10% lower than what I saw onlne) for hash cracking, if I run as user only the #1.
What's going on?
Thanks for help.
RE: Ryzen + RX 580 only one device working - soxrok2212 - 01-30-2019
I’m not quite sure what you’re asking, but 220kH/s is right on the money for an RX 580. You can use all the devices simultaneously with -d 1,2 in your command. Note that the RX 580 is literally a rebadged RX 480, sometimes with slightly higher clock speeds.
RE: Ryzen + RX 580 only one device working - philsmd - 01-30-2019
-d 1,2 is not the correct thing you need.
You need to whitelist/select the device types with:
--opencl-device-types (or short -D), capital letter "D"
-D 1,2 means that both GPUs and CPUs are whitelisted
RE: Ryzen + RX 580 only one device working - mfoolb - 01-30-2019
(01-30-2019, 07:07 PM)philsmd Wrote: -D 1,2 means that both GPUs and CPUs are whitelisted
Thanks.
Anyway now I have confirmation that something is not working as it should.
The device #2 is the GPU and it works at 220kH/s.
The device #1 is the CPU (Ryzen 7 1700x 8 core OC @3.8Ghz) but it works at only 5kH/s (on a laptop a AMD A12-9720P work under windows at 20kH/s).
Where should I investigate?
Thanks in advance.
RE: Ryzen + RX 580 only one device working - atom - 01-31-2019
Install Intel OpenCL runtime for CPU, this gives you a much better performance for AMD CPU. Not a joke.
RE: Ryzen + RX 580 only one device working - mfoolb - 01-31-2019
(01-31-2019, 09:56 AM)atom Wrote: Install Intel OpenCL runtime for CPU, this gives you a much better performance for AMD CPU. Not a joke.
Thank you very much for this 'strange/funny/weird' info.
How will the system 'choose' to use rocm only for the gpu and the Intel OpenCL for the CPU?
RE: Ryzen + RX 580 only one device working - atom - 01-31-2019
Use -D 1,2 to enable both device types, then use in addition -d to pick the devices you want to use.
RE: Ryzen + RX 580 only one device working - mfoolb - 02-01-2019
Hi,
with the intent of improving the quality of my hashcat testing I switched to a Ubuntu 18.04 LTS workstation.
Situation hasn't changed.
Fresh OS install/update/upgrade, Installed hashcat (git clone for last version) rocm-dkms and Intel OpenCL runtime.
Hashcat pmkid benchmark is the same: around 220kH/s for the GPU and around 5kH/s for the CPU.
Maybe there's something I should do after installing the Intel runtime (i followed this: https://gist.github.com/Brainiarc7/1d13c7f432ba03a8e38720c83cd973d5 )?
hashcat (v5.1.0-42-g471a8ccc) starting in benchmark mode...
OpenCL Platform #1: Advanced Micro Devices, Inc.
================================================
* Device #1: gfx803, 6963/8192 MB allocatable, 36MCU
OpenCL Platform #2: The pocl project
====================================
* Device #2: pthread-AMD Ryzen 7 1700X Eight-Core Processor, 4096/13986 MB allocatable, 16MCU
Benchmark relevant options:
===========================
* --opencl-device-types=1,2
* --workload-profile=3
Hashmode: 16800 - WPA-PMKID-PBKDF2 (Iterations: 4096)
Speed.#1.........: 224.3 kH/s (81.25ms) @ Accel:128 Loops:64 Thr:256 Vec:1
Speed.#2.........: 5062 H/s (50.39ms) @ Accel:512 Loops:128 Thr:1 Vec:8
Speed.#*.........: 229.4 kH/s
Thank you.
RE: Ryzen + RX 580 only one device working - atom - 02-05-2019
Sure not, as I said. You need to install Intel OpenCL runtime for CPU, this gives you a much better performance for AMD CPU (and also faster than pocl).
RE: Ryzen + RX 580 only one device working - mfoolb - 02-05-2019
(02-05-2019, 09:53 AM)atom Wrote: Sure not, as I said. You need to install Intel OpenCL runtime for CPU, this gives you a much better performance for AMD CPU (and also faster than pocl).
So, the forementioned link doesn't refer to the installation of the Intel OpenCL runtime for CPU?
Should I start from here: https://github.com/intel/compute-runtime/releases and try to compile for my kernel? Are there ubuntu 4.15 source/packages anywhere?
Thanks.