Hi Abel,try the ViennaCL backend. It used to work in the past, but I don't know the current state of AMD drivers and OpenCL on OS X.
Best regards, Karli On 4/14/20 5:50 AM, huabel via petsc-users wrote:
Dear PETSc users,Does PETSc suppurt AMD GPU card (such as RX 5700) on OS X?Thanks Abel Hu