OpenCL

Tips

• Pyro & Grains can make use of OpenCL
• OpenCL fallsback to CPU OpenCL when GPU runs out of memory
• Do LookDev with OpenCL bc solvers are slightly different than CPU ones
• Flip doesn't utilize OpenCL as much
• Grains - Increase number of iterations to 200 as a starter
• Pyro - have to be careful with sourcing as that triggers GPU-CPU xfers which might dwarf benefits of OpenCL

Minimize GPU-CPU transfers

• Make sure to turn off DOP Caching in the dopnet node bc caching copies all the fields every frame
• Only import minimal fields (eg density) to SOPs so you only have one field

Gas Upres

• Does not have built-in OpenCL toggle
• Dive into the node network and toggle Use OpenCL for all the advection nodes
• Dissipate doesn't have a built-in OpenCL node so use $HPSITE/ocl/sim/dissipate_upres.cl