// copied from IO::writeHotSpotFiles; adapter for getter on FloorPlanner
//
void writeHotSpotFiles__passiveSi_bonding(FloorPlanner& fp) {
std::ofstream file, file_bond;
int cur_layer;
unsigned x, y;
unsigned map_x, map_y;
float x_ll, y_ll;
float bin_w, bin_h;
/// generate floorplans for passive Si and bonding layer; considering TSVs (modelled via densities)
for (cur_layer = 0; cur_layer < fp.getLayers(); cur_layer++) {
// build up file names
std::stringstream Si_fp_file;
Si_fp_file << fp.getBenchmark() << "_HotSpot_Si_passive_" << cur_layer + 1 << ".flp";
std::stringstream bond_fp_file;
bond_fp_file << fp.getBenchmark() << "_HotSpot_bond_" << cur_layer + 1 << ".flp";
// init file streams
file.open(Si_fp_file.str().c_str());
file_bond.open(bond_fp_file.str().c_str());
// file headers
file << "# Line Format: <unit-name>\\t<width>\\t<height>\\t<left-x>\\t<bottom-y>\\t<specific-heat>\\t<resistivity>" << std::endl;
file << "# all dimensions are in meters" << std::endl;
file << "# comment lines begin with a '#'" << std::endl;
file << "# comments and empty lines are ignored" << std::endl;
file_bond << "# Line Format: <unit-name>\\t<width>\\t<height>\\t<left-x>\\t<bottom-y>\\t<specific-heat>\\t<resistivity>" << std::endl;
file_bond << "# all dimensions are in meters" << std::endl;
file_bond << "# comment lines begin with a '#'" << std::endl;
file_bond << "# comments and empty lines are ignored" << std::endl;
// walk power-map grid to obtain specific TSV densities of bins
for (x = ThermalAnalyzer::POWER_MAPS_PADDED_BINS; x < ThermalAnalyzer::THERMAL_MAP_DIM + ThermalAnalyzer::POWER_MAPS_PADDED_BINS; x++) {
// adapt index for final thermal map according to padding
map_x = x - ThermalAnalyzer::POWER_MAPS_PADDED_BINS;
// pre-calculate bin's lower-left corner coordinates;
// float precision required to avoid grid coordinate
// mismatches
x_ll = static_cast<float>(map_x * fp.getThermalAnalyzer().power_maps_dim_x * Math::SCALE_UM_M);
// pre-calculate bin dimensions; float precision required
// to avoid grid coordinate mismatches; re-calculation
// only required for lower and upper bounds
//
// lower bound, regular bin dimension; value also used
// until reaching upper bound
if (x == ThermalAnalyzer::POWER_MAPS_PADDED_BINS) {
bin_w = static_cast<float>(fp.getThermalAnalyzer().power_maps_dim_x * Math::SCALE_UM_M);
}
// upper bound, limit bin dimension according to overall
// chip outline; scale down slightly is required to avoid
// rounding errors during HotSpot's grid mapping
else if (x == (ThermalAnalyzer::THERMAL_MAP_DIM + ThermalAnalyzer::POWER_MAPS_PADDED_BINS - 1)) {
bin_w = 0.999 * static_cast<float>(fp.getOutline().x * Math::SCALE_UM_M - x_ll);
}
for (y = ThermalAnalyzer::POWER_MAPS_PADDED_BINS; y < ThermalAnalyzer::THERMAL_MAP_DIM + ThermalAnalyzer::POWER_MAPS_PADDED_BINS; y++) {
// adapt index for final thermal map according to padding
map_y = y - ThermalAnalyzer::POWER_MAPS_PADDED_BINS;
// pre-calculate bin's lower-left corner
// coordinates; float precision required to avoid
// grid coordinate mismatches
y_ll = static_cast<float>(map_y * fp.getThermalAnalyzer().power_maps_dim_y * Math::SCALE_UM_M);
// pre-calculate bin dimensions; float precision required
// to avoid grid coordinate mismatches; re-calculation
// only required for lower and upper bounds
//
// lower bound, regular bin dimension; value also used
// until reaching upper bound
if (y == ThermalAnalyzer::POWER_MAPS_PADDED_BINS) {
bin_h = static_cast<float>(fp.getThermalAnalyzer().power_maps_dim_y * Math::SCALE_UM_M);
}
// upper bound, limit bin dimension according to
// overall chip outline; scale down slightly is
// required to avoid rounding errors during
// HotSpot's grid mapping
else if (y == (ThermalAnalyzer::THERMAL_MAP_DIM + ThermalAnalyzer::POWER_MAPS_PADDED_BINS - 1)) {
bin_h = 0.999 * static_cast<float>(fp.getOutline().y * Math::SCALE_UM_M - y_ll);
}
// put grid block as floorplan blocks; passive Si layer
file << "Si_passive_" << cur_layer + 1 << "_" << map_x << ":" << map_y;
/// bin dimensions
file << " " << bin_w;
file << " " << bin_h;
/// bin's lower-left corner
file << " " << x_ll;
file << " " << y_ll;
// thermal properties, depending on bin's TSV density
file << " " << ThermalAnalyzer::heatCapSi(fp.getTechParameters().TSV_group_Cu_area_ratio, fp.getThermalAnalyzer().getPowerMaps()[cur_layer][x][y].TSV_density);
file << " " << ThermalAnalyzer::thermResSi(fp.getTechParameters().TSV_group_Cu_area_ratio, fp.getThermalAnalyzer().getPowerMaps()[cur_layer][x][y].TSV_density);
file << std::endl;
// put grid block as floorplan blocks; bonding layer
file_bond << "bond_" << cur_layer + 1 << "_" << map_x << ":" << map_y;
/// bin dimensions
file_bond << " " << bin_w;
file_bond << " " << bin_h;
/// bin's lower-left corner
file_bond << " " << x_ll;
file_bond << " " << y_ll;
// thermal properties, depending on bin's TSV density
file_bond << " " << ThermalAnalyzer::heatCapBond(fp.getTechParameters().TSV_group_Cu_area_ratio, fp.getThermalAnalyzer().getPowerMaps()[cur_layer][x][y].TSV_density);
file_bond << " " << ThermalAnalyzer::thermResBond(fp.getTechParameters().TSV_group_Cu_area_ratio, fp.getThermalAnalyzer().getPowerMaps()[cur_layer][x][y].TSV_density);
file_bond << std::endl;
}
}
// close file streams
file.close();
file_bond.close();
}
}
