Manasitiwari/add pipecg2
Merging pipecg2 solver in PETSc. It is a pipelined solver that reduces the number of allreduces to one per two iterations and overlaps it with two PCs and SPMVs using non-blocking allreduce.
Merging pipecg2 solver in PETSc. It is a pipelined solver that reduces the number of allreduces to one per two iterations and overlaps it with two PCs and SPMVs using non-blocking allreduce.