Dear Sir or Madam,<div><br></div><div>I'm a student from UIUC, and have some questions about communication optimizations on shared memory in state-of-art mpich2.</div><div><br></div><div>1) When configure mpich2, does it support shared memory optimization in default? If so, can it select the communication pattern automatically according to hardware architecture? For example in a SMPs cluster, using shared memory optimization within a node and using socket cross nodes?</div>
<div><br></div><div>2) What about collective communication on shared memory? Is it implemented on top of the optimized point to point communication or use other mechanisms?</div><div><br></div><div>Best Regards,</div><div>
Shigang.</div>