DMSwarmMigrateType

Selects the algorithm used by DMSwarmMigrate() to move particles between MPI processes

Synopsis

typedef enum {
  DMSWARM_MIGRATE_BASIC,
  DMSWARM_MIGRATE_DMCELLNSCATTER,
  DMSWARM_MIGRATE_DMCELLEXACT,
  DMSWARM_MIGRATE_USER
} DMSwarmMigrateType;

Values

• DMSWARM_MIGRATE_BASIC - inspect each particle’s owner rank and send it to that rank; assumes the user (or another code path) has already set the rank field correctly

• DMSWARM_MIGRATE_DMCELLNSCATTER - use the background DM to determine the target rank approximately, then scatter without verifying that the destination cell contains the point (cheaper, can leave particles in neighbors)

• DMSWARM_MIGRATE_DMCELLEXACT - use the background DM and perform an exact point-location step before sending (more expensive, guarantees correct placement)

• DMSWARM_MIGRATE_USER - call a user-supplied migration function rather than one of the built-in strategies

See Also

DM Basics, DM, DMSWARM, DMSwarmMigrate(), DMSwarmSetMigrateType(), DMSwarmGetMigrateType()

Level

intermediate

Location

include/petscdmswarm.h

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Index of all DMSwarm routines
Table of Contents for all manual pages
Index of all manual pages