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====== Ubuntu - GPU - PCIe atomics ======

Supports SMP-type operations across a PCIe network to allow for things like offloading tasks between CPU cores and accelerators like a GPU. 

----

===== Check if your system supports PCIe atomics =====

<code bash>
sudo dmesg | grep -i kfd
</code>

returns:

<code bash>
[    5.648377] kfd kfd: amdgpu: Allocated 3969056 bytes on gart
[    5.728369] kfd kfd: amdgpu: added device 1002:744c
</code>

<WRAP info>
**NOTE:** Your system supports PCIe atomics if you find something like <code bash>
kfd kfd: added device 1002:15d8
</code>

  * Without PCIe atomics you will get something like <code bash>
kfd: skipped device 1002:7300, PCI rejects atomics
</code>

  * The **1002:744c** can be checked against the [[https://drmdb.emersion.fr/devices|DRM Database]].

</WRAP>

----

===== References =====

[[https://drmdb.emersion.fr/devices|DRM Database]]