Vast.ai - Using GPU and CPU at same time!

[rodrigo.Brasil]

Whether it is faster with the CPU depends on the type of hash you are working on. In most cases, the CPU slows down the GPU. To use the CPU you must have OpenCL installed on your instance.

So... How do I install the OpenCL for CPU? I really tried a lot of things and none worked. 

This is just an random machine I rent. The GPU works fine. It was even a small success to hashcat list the Device #3, but don't worked. 

Show the magic command that will make it works! 

Code:

* Device #3: Outdated POCL OpenCL driver detected!

This OpenCL driver may fail kernel compilation or produce false negatives.
We recommend using a version of POCL >= 1.9
You can use --force to override, but do not report related errors.


The device #2 specifically listed was skipped because it is an alias of device #1

CUDA API (CUDA 12.0)
====================
* Device #1: NVIDIA GeForce RTX 3090, 23997/24259 MB, 82MCU

OpenCL API (OpenCL 3.0 CUDA 12.0.133) - Platform #1 [NVIDIA Corporation]
========================================================================
* Device #2: NVIDIA GeForce RTX 3090, skipped

OpenCL API (OpenCL 1.2 pocl 1.1 None+Asserts, LLVM 6.0.0, SPIR, SLEEF, DISTRO, POCL_DEBUG) - Platform #2 [The pocl project]
===========================================================================================================================
* Device #3: pthread-Intel(R) Xeon(R) CPU E5-2698 v3 @ 2.30GHz, skipped

OS - Version

Code:

cat /etc/os-release
NAME="Ubuntu"
VERSION="18.04.6 LTS (Bionic Beaver)"

uname -a

Code:

Linux 1edf239bd740 5.15.0-60-generic #66~20.04.1-Ubuntu SMP Wed Jan 25 09:41:30 UTC 2023 x86_64 x86_64 x86_64 GNU/Linux