CL_DEVICE_NOT_AVAILABLE on GCP Xeon CPU

[albert4]

Linux newbie here - could you kindly guide me to make hashcat works on GCP e2 instance (2 vCPU, no GPU, OS Debian) - which package should I install ? (i know it will be slow without GPU).
OpenCL seems to be already installed.
Considering error "clCreateContext(): CL_DEVICE_NOT_AVAILABLE"

Code:

:~/hashcat-6.2.5$ ./hashcat.bin -I
hashcat (v6.2.5) starting in backend information mode

clCreateContext(): CL_DEVICE_NOT_AVAILABLE

OpenCL Info:
============
OpenCL Platform ID #1
  Vendor..: Intel(R) Corporation
  Name....: Intel(R) CPU Runtime for OpenCL(TM) Applications
  Version.: OpenCL 2.1 LINUX

  Backend Device ID #1
    Type...........: CPU
    Vendor.ID......: 8
    Vendor.........: Intel(R) Corporation
    Name...........: Intel(R) Xeon(R) CPU @ 2.20GHz
    Version........: OpenCL 2.1 (Build 0)
    Processor(s)...: 2
    Clock..........: 2200
    Memory.Total...: 975 MB (limited to 121 MB allocatable in one block)
    Memory.Free....: 0 MB
    OpenCL.Version.: OpenCL C 2.0
    Driver.Version.: 18.1.0.0920

Code:

:~/hashcat-6.2.5$ ./hashcat.bin -b -m 0
hashcat (v6.2.5) starting in benchmark mode

clCreateContext(): CL_DEVICE_NOT_AVAILABLE

OpenCL API (OpenCL 2.1 LINUX) - Platform #1 [Intel(R) Corporation]
=========================================================
* Device #1: Intel(R) Xeon(R) CPU @ 2.20GHz, skipped

Benchmark relevant options:
===========================
* --optimized-kernel-enable

-------------------
* Hash-Mode 0 (MD5)
-------------------

Started: Wed Jun 15 13:47:52 2022
Stopped: Wed Jun 15 13:48:16 2022

Thanks a lot.