Merge pull request #1600 from verilog-to-routing/vpr_constraints_parsing

Vpr constraints parsing

Author: sfkhalid

vpr/src/base/SetupVPR.cpp

@@ -93,6 +93,7 @@ void SetupVPR(const t_options* Options,
     FileNameOpts->PowerFile = Options->PowerFile;
     FileNameOpts->CmosTechFile = Options->CmosTechFile;
     FileNameOpts->out_file_prefix = Options->out_file_prefix;
+    FileNameOpts->read_vpr_constraints_file = Options->read_vpr_constraints_file;
 
     FileNameOpts->verify_file_digests = Options->verify_file_digests;
 

vpr/src/base/ShowSetup.cpp

@@ -31,6 +31,7 @@ void ShowSetup(const t_vpr_setup& vpr_setup) {
     VTR_LOG("Circuit placement file: %s\n", vpr_setup.FileNameOpts.PlaceFile.c_str());
     VTR_LOG("Circuit routing file: %s\n", vpr_setup.FileNameOpts.RouteFile.c_str());
     VTR_LOG("Circuit SDC file: %s\n", vpr_setup.Timing.SDCFile.c_str());
+    VTR_LOG("Vpr Constraints file: %s\n", vpr_setup.FileNameOpts.read_vpr_constraints_file.c_str());
     VTR_LOG("\n");
 
     VTR_LOG("Packer: %s\n", (vpr_setup.PackerOpts.doPacking ? "ENABLED" : "DISABLED"));

vpr/src/base/constraints_load.cpp

@@ -0,0 +1,81 @@
+#include "constraints_load.h"
+
+static void print_region(FILE* fp, Region region);
+static void print_partition(FILE* fp, Partition part);
+static void print_partition_region(FILE* fp, PartitionRegion pr);
+static void print_constraints(FILE* fp, VprConstraints constraints, int num_parts);
+
+void print_region(FILE* fp, Region region) {
+    vtr::Rect<int> rect = region.get_region_rect();
+    int xmin = rect.xmin();
+    int xmax = rect.xmax();
+    int ymin = rect.ymin();
+    int ymax = rect.ymax();
+    int subtile = region.get_sub_tile();
+
+    fprintf(fp, "\tRegion: \n");
+    fprintf(fp, "\txmin: %d\n", xmin);
+    fprintf(fp, "\txmax: %d\n", xmax);
+    fprintf(fp, "\tymin: %d\n", ymin);
+    fprintf(fp, "\tymax: %d\n", ymax);
+    fprintf(fp, "\tsubtile: %d\n\n", subtile);
+}
+
+void print_partition(FILE* fp, Partition part) {
+    std::string name = part.get_name();
+    fprintf(fp, "\npartition_name: %s\n", name.c_str());
+
+    PartitionRegion pr = part.get_part_region();
+
+    print_partition_region(fp, pr);
+}
+
+void print_partition_region(FILE* fp, PartitionRegion pr) {
+    std::vector<Region> part_region = pr.get_partition_region();
+
+    int pr_size = part_region.size();
+
+    fprintf(fp, "\tNumber of regions in partition is: %d\n", pr_size);
+
+    for (unsigned int i = 0; i < part_region.size(); i++) {
+        print_region(fp, part_region[i]);
+    }
+}
+
+void print_constraints(FILE* fp, VprConstraints constraints, int num_parts) {
+    Partition temp_part;
+    std::vector<AtomBlockId> atoms;
+
+    for (int i = 0; i < num_parts; i++) {
+        PartitionId part_id(i);
+
+        temp_part = constraints.get_partition(part_id);
+
+        print_partition(fp, temp_part);
+
+        atoms = constraints.get_part_atoms(part_id);
+
+        int atoms_size = atoms.size();
+
+        fprintf(fp, "\tAtom vector size is %d\n", atoms_size);
+        fprintf(fp, "\tIds of atoms in partition: \n");
+        for (unsigned int j = 0; j < atoms.size(); j++) {
+            AtomBlockId atom_id = atoms[j];
+            fprintf(fp, "\t#%zu\n", size_t(atom_id));
+        }
+    }
+}
+
+void echo_constraints(char* filename, VprConstraints constraints, int num_parts) {
+    FILE* fp;
+    fp = vtr::fopen(filename, "w");
+
+    fprintf(fp, "--------------------------------------------------------------\n");
+    fprintf(fp, "Constraints\n");
+    fprintf(fp, "--------------------------------------------------------------\n");
+    fprintf(fp, "\n");
+    fprintf(fp, "\n Number of partitions is %d \n", num_parts);
+    print_constraints(fp, constraints, num_parts);
+
+    fclose(fp);
+}

vpr/src/base/constraints_load.h

@@ -0,0 +1,12 @@
+#ifndef CONSTRAINTS_LOAD_H_
+#define CONSTRAINTS_LOAD_H_
+
+#include "region.h"
+#include "partition.h"
+#include "partition_region.h"
+#include "vpr_constraints.h"
+#include "vtr_vector.h"
+
+void echo_constraints(char* filename, VprConstraints constraints, int num_parts);
+
+#endif

vpr/src/base/echo_files.cpp

@@ -71,6 +71,9 @@ void alloc_and_load_echo_file_info() {
     setEchoFileName(E_ECHO_ATOM_NETLIST_ORIG, "atom_netlist.orig.echo.blif");
     setEchoFileName(E_ECHO_ATOM_NETLIST_CLEANED, "atom_netlist.cleaned.echo.blif");
 
+    //Vpr constraints
+    setEchoFileName(E_ECHO_VPR_CONSTRAINTS, "vpr_constraints.echo");
+
     //Intra-block routing
     setEchoFileName(E_ECHO_INTRA_LB_FAILED_ROUTE, "intra_lb_failed_route.echo");
 

vpr/src/base/echo_files.h

@@ -10,6 +10,7 @@ enum e_echo_files {
     E_ECHO_PRE_PACKING_SLACK,
     E_ECHO_PRE_PACKING_CRITICALITY,
     E_ECHO_PRE_PACKING_MOLECULES_AND_PATTERNS,
+    E_ECHO_VPR_CONSTRAINTS,
 
     // Intra-block routing
     E_ECHO_INTRA_LB_FAILED_ROUTE,

vpr/src/base/gen/README.gen.md

@@ -0,0 +1,3 @@
+`vpr_constraints_uxsdcxx.h`and
+`vpr_constraints_uxsdcxx_interface.h` are generated via uxsdcxx and are checked in to
+avoid requiring python3 and the uxsdcxx depedencies to build VPR.