| Author | Cameron W. Smith, Brian Granzow, Dan Ibanez, Onkar Sahni, Kenneth E. Jansen and Mark .S. Shephard |
|---|---|
| Title | In-memory Integration of Existing Software Components for Parallel Adaptive Unstructured Mesh Workflows |
| Year | 2016 |
| Journal | Proceedings of the XSEDE16 Conference |
| Publisher | ACM |
| Abstract | Reliable mesh-based simulations are needed to solve complex engineering problems. Mesh adaptivity can increase reliabil- ity by reducing discretization errors, but requires multiple software components to exchange information. Often, com- ponents exchange information by reading and writing a com- mon file format. This file-based approach becomes a prob- lem on massively parallel computers where filesystem band- width is a critical performance bottleneck. Our data stream and component interface approaches avoid the filesystem bottleneck. In this paper we present our approaches and their use within the PHASTA computational fluid dynam- ics solver and Albany multiphysics framework. Information exchange performance results are reported on up to 2048 cores of a BlueGene/Q system. |
| PDF File |  Download |
| DOI Link | 10.1145/2949550.2949650 |