/usr/include/trilinos/Zoltan2_MachineForTesting.hpp is in libtrilinos-zoltan2-dev 12.12.1-5.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 | #ifndef _ZOLTAN2_MACHINEFORTESTING_HPP_
#define _ZOLTAN2_MACHINEFORTESTING_HPP_
#include <Teuchos_Comm.hpp>
#include <Teuchos_CommHelpers.hpp>
#include <Zoltan2_Machine.hpp>
namespace Zoltan2{
/*! \brief A Machine Class for testing only
* A more realistic machine should be used for task mapping.
*/
template <typename pcoord_t, typename part_t>
class MachineForTesting : public Machine<pcoord_t, part_t> {
public:
/*! \brief Constructor: A default machine description used only for testing;
* it does not contain actual machine information.
* \param comm Communication object.
*/
MachineForTesting(const Teuchos::Comm<int> &comm):
Machine<pcoord_t,part_t>(comm),
networkDim(3),
procCoords(NULL)
{
//allocate memory for processor coordinates.
procCoords = new pcoord_t *[networkDim];
for (int i = 0; i < networkDim; ++i){
procCoords[i] = new pcoord_t[this->numRanks];
memset(procCoords[i], 0, sizeof(pcoord_t) * this->numRanks);
}
//obtain the coordinate of the processor.
pcoord_t *xyz = new pcoord_t[networkDim];
getMyMachineCoordinate(xyz);
for (int i = 0; i < networkDim; i++)
procCoords[i][this->myRank] = xyz[i];
delete [] xyz;
//reduceAll the coordinates of each processor.
gatherMachineCoordinates(comm);
}
MachineForTesting(const Teuchos::Comm<int> &comm, const Teuchos::ParameterList &pl ):
Machine<pcoord_t,part_t>(comm),
networkDim(3),
procCoords(NULL)
{
//allocate memory for processor coordinates.
procCoords = new pcoord_t *[networkDim];
for (int i = 0; i < networkDim; ++i){
procCoords[i] = new pcoord_t[this->numRanks];
memset(procCoords[i], 0, sizeof(pcoord_t) * this->numRanks);
}
//obtain the coordinate of the processor.
pcoord_t *xyz = new pcoord_t[networkDim];
getMyMachineCoordinate(xyz);
for (int i = 0; i < networkDim; i++)
procCoords[i][this->myRank] = xyz[i];
delete [] xyz;
//reduceAll the coordinates of each processor.
gatherMachineCoordinates(comm);
}
virtual ~MachineForTesting() {
for (int i = 0; i < networkDim; i++){
delete [] procCoords[i];
}
delete [] procCoords;
}
bool hasMachineCoordinates() const { return true; }
int getMachineDim() const { return networkDim; }
bool getMachineExtent(int *nxyz) const {
// Ficticious machine extent
nxyz[0] = this->numRanks;
nxyz[1] = 2*this->numRanks;
nxyz[2] = 3*this->numRanks;
return true;
}
bool getMyMachineCoordinate(pcoord_t *xyz) {
return getMachineCoordinate(this->myRank, xyz);
}
bool getMachineCoordinate(const int rank, pcoord_t *xyz) {
// Ficticious machine coordinates
// part_t slice = part_t(pow(double(this->numRanks), double(1.0/networkDim))
// + 0.5);
// part_t m = rank;
// for (int i = 0; i < networkDim; ++i){
// xyz[i] = m / part_t(pow(slice, double(networkDim - i - 1)));
// m = m % part_t(pow(double(slice), double(networkDim - i - 1)));
// }
xyz[0] = rank;
xyz[1] = this->numRanks;
xyz[2] = this->numRanks+1;
return true;
}
bool getMachineCoordinate(const char *nodename, pcoord_t *xyz) {
return false; // cannot yet return from nodename
}
bool getAllMachineCoordinatesView(pcoord_t **&allCoords) const {
allCoords = procCoords;
return true;
}
private:
int networkDim;
pcoord_t **procCoords; // KDD Maybe should be RCP?
void gatherMachineCoordinates(const Teuchos::Comm<int> &comm) {
// reduces and stores all machine coordinates.
pcoord_t *tmpVect = new pcoord_t [this->numRanks];
for (int i = 0; i < networkDim; i++) {
Teuchos::reduceAll<int, pcoord_t>(comm, Teuchos::REDUCE_SUM,
this->numRanks, procCoords[i], tmpVect);
pcoord_t *tmp = tmpVect;
tmpVect = procCoords[i];
procCoords[i] = tmp;
}
delete [] tmpVect;
}
};
}
#endif
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