/*
**************************************************************************
* Compute Connector widths that this class requires in order to work
* properly on a given hierarchy.
*
* The only TimeRefinementIntegrator requirement is enough
* self_connector_widths to fill the tag buffer that the integrator
* passes to its GriddingAlgorithm. For some reason, this ghost width
* was not registered at the time the required Connector widths are
* computed. This appeared to be by design (see how it uses
* GriddingAlgorithm::resetTagBufferingData), so I didn't change it,
* but it probably should be redesigned. Filling the tag data ghosts
* doesn't use recursive refine schedules, so it has no effect on the
* fine_connector_widths. --BTNG.
**************************************************************************
*/
void
TimeRefinementIntegratorConnectorWidthRequestor::computeRequiredConnectorWidths(
std::vector<hier::IntVector>& self_connector_widths,
std::vector<hier::IntVector>& fine_connector_widths,
const hier::PatchHierarchy& patch_hierarchy) const
{
const tbox::Dimension& dim(patch_hierarchy.getDim());
const int max_levels(patch_hierarchy.getMaxNumberOfLevels());
fine_connector_widths.resize(max_levels - 1, hier::IntVector::getZero(dim));
self_connector_widths.clear();
self_connector_widths.reserve(max_levels);
for (size_t ln = 0; ln < static_cast<size_t>(max_levels); ++ln) {
hier::IntVector buffer(
dim,
d_tag_buffer.size() > ln ? d_tag_buffer[ln] : d_tag_buffer.back());
self_connector_widths.push_back(buffer);
}
}
/*
**************************************************************************
* Compute Connector widths that this class requires in order to work
* properly on a given hierarchy.
**************************************************************************
*/
void
RefineScheduleConnectorWidthRequestor::computeRequiredConnectorWidths(
std::vector<hier::IntVector>& self_connector_widths,
std::vector<hier::IntVector>& fine_connector_widths,
const hier::PatchHierarchy& patch_hierarchy) const
{
int max_levels = patch_hierarchy.getMaxNumberOfLevels();
const tbox::Dimension& dim(patch_hierarchy.getDim());
/*
* Add one to max data ghost width to create overlaps of data
* living on patch boundaries.
*/
const hier::IntVector max_data_gcw(
patch_hierarchy.getPatchDescriptor()->getMaxGhostWidth(dim) + 1);
hier::IntVector max_stencil_width =
patch_hierarchy.getGridGeometry()->getMaxTransferOpStencilWidth(dim);
max_stencil_width.max(
RefinePatchStrategy::getMaxRefineOpStencilWidth(dim));
hier::IntVector zero_vector(hier::IntVector::getZero(dim),
patch_hierarchy.getNumberBlocks());
/*
* Compute the Connector width needed to ensure all edges are found
* during mesh recursive refine schedule generation. It is safe to
* be conservative, but carrying around a larger than necessary
* width requires more memory and slows down Connector operations.
*
* All Connectors to self need to be at least wide enough to
* support the copy of data from the same level into ghost cells.
* Thus, the width should be at least that of the max ghost data
* width. On the finest level, there is no other requirement. For
* other levels, we need enough width for:
*
* - refining the next finer level
*
* - refining recursively starting at each of the levels finer than
* it.
*/
hier::IntVector self_width(max_data_gcw * d_gcw_factor,
patch_hierarchy.getNumberBlocks());
self_connector_widths.clear();
self_connector_widths.resize(max_levels, self_width);
fine_connector_widths.clear();
if (max_levels > 1) {
fine_connector_widths.resize(max_levels - 1, zero_vector); // to be computed below.
}
/*
* Note that the following loops go from fine to coarse. This is
* because Connector widths for coarse levels depend on those for
* fine levels.
*/
for (int ln = max_levels - 1; ln > -1; --ln) {
computeRequiredFineConnectorWidthsForRecursiveRefinement(
fine_connector_widths,
max_data_gcw,
max_stencil_width,
patch_hierarchy,
ln);
}
}
