| -pc_spai_epsilon <eps> | - set tolerance | |
| -pc_spai_nbstep <n> | - set nbsteps | |
| -pc_spai_max <m> | - set max | |
| -pc_spai_max_new <m> | - set maxnew | |
| -pc_spai_block_size <n> | - set block size | |
| -pc_spai_cache_size <n> | - set cache size | |
| -pc_spai_sp <m> | - set sp | |
| -pc_spai_set_verbose <true,false> | - verbose output |