https://community.intel.com/t5/Intel-MPI-Library/HPCG-memory-allocation/m-p/1065740#M4569 <P>Hello,</P> <P>I wanted to ask if somebody could explain how i can calculate the memory usage for the intel<SPAN lang="en"> optimized HPCG from grid size nx ny nz ?</SPAN></P> <P><SPAN lang="en">Thank you for any help :D</SPAN></P> Tue, 06 Sep 2016 14:25:54 GMT Kai_S_1 2016-09-06T14:25:54Z https://community.intel.com/t5/Intel-MPI-Library/HPCG-memory-allocation/m-p/1065740#M4569 <P>Hello,</P> <P>I wanted to ask if somebody could explain how i can calculate the memory usage for the intel<SPAN lang="en"> optimized HPCG from grid size nx ny nz ?</SPAN></P> <P><SPAN lang="en">Thank you for any help :D</SPAN></P> Tue, 06 Sep 2016 14:25:54 GMT https://community.intel.com/t5/Intel-MPI-Library/HPCG-memory-allocation/m-p/1065740#M4569 Kai_S_1 2016-09-06T14:25:54Z https://community.intel.com/t5/Intel-MPI-Library/HPCG-memory-allocation/m-p/1065741#M4570 Dear Kai, Intel Optimized HPCG uses memory pool for all its data allocations. You can see it initialized in src/hpcg.cpp source file shipped with the benchmark: <PRE class="brush:cpp"> . . . memoryPool-&gt;initialize( . . . : 896L*nx*ny*nz + 1024*1024); . . . </PRE> You can use this as a reference for memory estimation. Best regards, Alexander Wed, 28 Sep 2016 11:46:00 GMT https://community.intel.com/t5/Intel-MPI-Library/HPCG-memory-allocation/m-p/1065741#M4570 Alexander_K_Intel1 2016-09-28T11:46:00Z