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primusrun - Online in the Cloud

Run primusrun in OnWorks free hosting provider over Ubuntu Online, Fedora Online, Windows online emulator or MAC OS online emulator

This is the command primusrun that can be run in the OnWorks free hosting provider using one of our multiple free online workstations such as Ubuntu Online, Fedora Online, Windows online emulator or MAC OS online emulator

PROGRAM:

NAME


primusrun - run an application on a discrete NVIDIA video card

SYNOPSIS


primusrun command

DESCRIPTION


Primus implements low-overhead local-only client-side OpenGL offloading via GLX forking.

It is currently intended to be used alongside Bumblebee and provides a drop-in replacement
for optirun (i.e. "primusrun").

VARIABLES


The following is a list of environment variables affecting primus library that may be
relevant for end users:

PRIMUS_SYNC
Readback-display synchronization method (default: 0)
0: no sync, 1: synced, display previous frame, 2: synced, display latest frame

PRIMUS_VERBOSE
Verbosity level (default: 1)
0: only errors, 1: warnings, 2: profiling

PRIMUS_DISPLAY
The secondary Xorg server display number (default: :8)

EXAMPLES


primusrun glxgears -info
Runs the graphics demo supplied by mesa-utils to confirm whether the discrete card
is being used for GL rendering.

PRIMUS_VERBOSE=2 primusrun glxgears
Runs the graphics demo supplied by mesa-utils with verbose output from primus.

vblank_mode=0 primusrun glxgears
Disable vblank synchronisation, typically used for benchmarking purposes.

ISSUES


Since compositing hurts performance, invoking primus when a compositing WM is active is
not recommended. If you need to use primus with compositing and see flickering or bad
performance, synchronizing primus' display thread with the application's rendering thread
may help.

PRIMUS_SYNC=1 primusrun ...

This makes primus display the previously rendered frame. Alternatively, with PRIMUS_SYNC=2
primus will display the latest rendered frame, trading frame rate for reduced visual
latency.

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