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MueLu_LWGraph_kokkos_def.hpp
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5// MueLu: A package for multigrid based preconditioning
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46#ifndef MUELU_LWGRAPH_KOKKOS_DEF_HPP
47#define MUELU_LWGRAPH_KOKKOS_DEF_HPP
48
49#include <Kokkos_Core.hpp>
50
51#include <Teuchos_ArrayView.hpp>
52
54
55namespace MueLu {
56
57 template<class LocalOrdinal, class GlobalOrdinal, class DeviceType>
59 print(Teuchos::FancyOStream &out, const VerbLevel verbLevel) const {
60
61 if (verbLevel & Debug) {
62 auto graph = lclLWGraph_.getGraph();
63 RCP<const Map> col_map = importMap_.is_null() ? domainMap_ : importMap_;
64 int mypid = col_map->getComm()->getRank();
65
66 {
67 std::ostringstream ss;
68 ss << "[pid " << mypid << "] num entries=" << graph.entries.size();
69 out << ss.str() << std::endl;
70 }
71
72 const size_t numRows = graph.numRows();
73 auto rowPtrs = graph.row_map;
74 auto columns = graph.entries;
75 for (size_t i=0; i < numRows; ++i) {
76 std::ostringstream ss;
77 ss << "[pid " << mypid << "] row " << domainMap_->getGlobalElement(i) << ":";
78 ss << " (numEntries=" << rowPtrs(i+1)-rowPtrs(i) << ")";
79
80 auto rowView = graph.rowConst(i);
81 for (LO j = 0; j < rowView.length; j++) {
82 ss << " " << col_map->getGlobalElement(rowView.colidx(j));
83 }
84 out << ss.str() << std::endl;
85 }
86 }
87 }
88
89} //namespace MueLu
90
91#endif // MUELU_LWGRAPH_KOKKOS_DEF_HPP
Lightweight MueLu representation of a compressed row storage graph.
Namespace for MueLu classes and methods.
@ Debug
Print additional debugging information.