Appendix A: Known Issues#

This section provides information about issues that might be encountered during the installation process or initially with a freshly installed Grace system. This is not an exhaustive list and focuses on only items that NVIDIA has encountered multiple times during testing.

A.1 CPU Frequency Governor#

Some distros default the CPU frequency governor to a setting other than performance. This might result in an overall system performance that does not meet expectations. NVIDIA recommends setting the default frequency governor for the Grace platform to the performance governor, which sets the frequency to the maximum value for that core. For most distros, this can be accomplished with the cpufreq.default_governor=performance kernel parameter. See the NVIDIA Grace Performance Tuning Guide for more information.

A.2 Network Time Protocol#

By default, some distros do not enable the network time protocol (NTP), which can result in inconsistent time settings on the system and can lead to unintended side effects. For example, SSL certificates might fail verification. NVIDIA recommends that you enable NTP on your distro.

Note

A valid date and time may be required to install your distro on the Grace platform.

A.3 Page Size#

By default, most distros install a kernel that uses the 4K page size. The Grace platform supports 4K and 64K page sizes, so NVIDIA recommends using the 64K page size because it benefits applications that have a large memory footprint. Many distros support a 64K kernel that can be installed with the package manager for the distro. Refer to Page Size for more information.

Note

The page size of the current kernel can be displayed with getconf PAGE_SIZE.