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dc.contributor.authorAlghamdi, Amal
dc.contributor.authorAhmadia, Aron
dc.contributor.authorKetcheson, David I.
dc.contributor.authorKnepley, Matthew
dc.contributor.authorMandli, Kyle
dc.contributor.authorDalcin, Lisandro
dc.date.accessioned2014-11-04T08:51:51Z
dc.date.available2014-11-04T08:51:51Z
dc.date.issued2011
dc.identifier.urihttp://hdl.handle.net/10754/333645
dc.description.abstractWe present PetClaw, a scalable distributed-memory solver for time-dependent nonlinear wave propagation. PetClaw unifies two well-known scientific computing packages, Clawpack and PETSc, using Python interfaces into both. We rely on Clawpack to provide the infrastructure and kernels for time-dependent nonlinear wave propagation. Similarly, we rely on PETSc to manage distributed data arrays and the communication between them.We describe both the implementation and performance of PetClaw as well as our challenges and accomplishments in scaling a Python-based code to tens of thousands of cores on the BlueGene/P architecture. The capabilities of PetClaw are demonstrated through application to a novel problem involving elastic waves in a heterogeneous medium. Very finely resolved simulations are used to demonstrate the suppression of shock formation in this system.
dc.language.isoen
dc.publisher19th High Performance Computing Symposium (HPC 2011)
dc.relation.urlhttp://numerics.kaust.edu.sa/papers/petclaw2011/petclaw2011.html
dc.relation.urlhttp://hosting.cs.vt.edu/hpc2011/
dc.subjectwave propagation
dc.subjectPETSc
dc.subjectpetsc4py
dc.subjectClawpack
dc.subjectPyClaw
dc.titlePetClaw: A scalable parallel nonlinear wave propagation solver for Python
dc.typeConference Paper
dc.contributor.departmentComputer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division
dc.contributor.departmentNumerical Mathematics Group
dc.identifier.journalProceedings of the High Performance Computing Symposium 2011
dc.eprint.versionPost-print
dc.contributor.institutionUniversity of Chicago
dc.contributor.institutionUniversity of Washington
dc.contributor.institutionCIMEC
refterms.dateFOA2018-06-14T07:15:24Z


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