---
name: "likwid-accessD"
section: "1"
platform: "linux"
package: "likwid"
version: "5.4.1+dfsg-1"
release: "Debian 13 (Trixie)"
platforms: ["linux"]
url: "https://new.carta.tech/likwid-accessD"
---

# likwid-accessD(1)

This tool forwards the access operations from LIKWID PerfMon tools to the MSR and PCI device files

## NAME

likwid-accessD - This tool forwards the access operations from LIKWID PerfMon tools to the MSR  and PCI device files

## DESCRIPTION

**likwid-accessD** is a command line application that opens a UNIX file socket and waits for access operations from LIKWID tools that require access to the MSR/PCI device files or MMIO ranges. The MSR/PCI device files and MMIO rangesare only accessible for users with root privileges, therefore **likwid-accessD** requires the suid-bit set or a suitable libcap setting. Depending on the current system architecture, **likwid-accessD** permits only access to registers defined for the architecture.

## AUTHOR

Written by Thomas Gruber \<thomas.roehl@googlemail.com\>.

## BUGS

Report Bugs on \<https://github.com/RRZE-HPC/likwid/issues\>.

## SEE ALSO

[likwid-perfctr(1)](/likwid-perfctr/1.md), [likwid-powermeter(1)](/likwid-powermeter/1.md), [likwid-features(1)](/likwid-features/1.md)