Critical patch on repacking about wire LUT support.

Previously, the wire LUT identification is too naive and does not consider all the cases

openfpga/src/base/openfpga_repack.cpp

@@ -37,7 +37,8 @@ int repack(OpenfpgaContext& openfpga_ctx,
                                   g_vpr_ctx.atom(),
                                   g_vpr_ctx.clustering(),
                                   openfpga_ctx.vpr_device_annotation(),
-                                  openfpga_ctx.arch().circuit_lib); 
+                                  openfpga_ctx.arch().circuit_lib,
+                                  cmd_context.option_enable(cmd, opt_verbose));
 
   /* TODO: should identify the error code from internal function execution */
   return CMD_EXEC_SUCCESS;

openfpga/src/repack/build_physical_truth_table.cpp

@@ -11,15 +11,13 @@
 #include "openfpga_naming.h"
 
 #include "lut_utils.h"
+#include "pb_type_utils.h"
 #include "physical_pb.h"
 #include "build_physical_truth_table.h"
 
 /* begin namespace openfpga */
 namespace openfpga {
 
-/* Mode 1 is the lut mode while mode 0 is the wire mode */
-constexpr int VPR_PB_TYPE_LUT_MODE = 1;
-
 /***************************************************************************************
  * Identify if LUT is used as wiring 
  * In this case, LUT functions as a buffer
@@ -102,7 +100,8 @@ void build_physical_pb_lut_truth_tables(PhysicalPb& physical_pb,
                                         const PhysicalPbId& lut_pb_id,
                                         const AtomContext& atom_ctx,
                                         const VprDeviceAnnotation& device_annotation,
-                                        const CircuitLibrary& circuit_lib) {
+                                        const CircuitLibrary& circuit_lib,
+                                        const bool& verbose) {
   const t_pb_graph_node* pb_graph_node = physical_pb.pb_graph_node(lut_pb_id);
 
   CircuitModelId lut_model = device_annotation.pb_type_circuit_model(physical_pb.pb_graph_node(lut_pb_id)->pb_type);
@@ -125,20 +124,21 @@ void build_physical_pb_lut_truth_tables(PhysicalPb& physical_pb,
         continue;
       }
       /* Check if this is a LUT used as wiring */
-      if (true == is_wired_lut(input_nets, output_net)) {
+      AtomNetlist::TruthTable adapt_tt;
-        AtomNetlist::TruthTable wire_tt = build_wired_lut_truth_table(input_nets.size(), std::find(input_nets.begin(), input_nets.end(), output_net) - input_nets.begin()); 
+      if (true == physical_pb.is_wire_lut_output(lut_pb_id, output_pin)) {
-        physical_pb.set_truth_table(lut_pb_id, output_pin, wire_tt);
+        /* Double check: ensure that the output nets appear in the input net !!! */
-        continue;
+        VTR_ASSERT(true == is_wired_lut(input_nets, output_net));
+        adapt_tt = build_wired_lut_truth_table(input_nets.size(), std::find(input_nets.begin(), input_nets.end(), output_net) - input_nets.begin()); 
+      } else {
+        /* Find the truth table from atom block which drives the atom net */
+        const AtomBlockId& atom_blk = atom_ctx.nlist.net_driver_block(output_net); 
+        VTR_ASSERT(true == atom_ctx.nlist.valid_block_id(atom_blk));
+        const AtomNetlist::TruthTable& orig_tt = atom_ctx.nlist.block_truth_table(atom_blk);
+
+        std::vector<int> rotated_pin_map = generate_lut_rotated_input_pin_map(input_nets, atom_ctx, atom_blk, pb_graph_node);
+        adapt_tt = lut_truth_table_adaption(orig_tt, rotated_pin_map);
       }
 
-      /* Find the truth table from atom block which drives the atom net */
-      const AtomBlockId& atom_blk = atom_ctx.nlist.net_driver_block(output_net); 
-      VTR_ASSERT(true == atom_ctx.nlist.valid_block_id(atom_blk));
-      const AtomNetlist::TruthTable& orig_tt = atom_ctx.nlist.block_truth_table(atom_blk);
-
-      std::vector<int> rotated_pin_map = generate_lut_rotated_input_pin_map(input_nets, atom_ctx, atom_blk, pb_graph_node);
-      const AtomNetlist::TruthTable& adapt_tt = lut_truth_table_adaption(orig_tt, rotated_pin_map);
-
       /* Adapt the truth table for fracturable lut implementation and add to physical pb */
       CircuitPortId lut_model_output_port = device_annotation.pb_circuit_port(output_pin->port);
       size_t lut_frac_level = circuit_lib.port_lut_frac_level(lut_model_output_port);
@@ -148,6 +148,29 @@ void build_physical_pb_lut_truth_tables(PhysicalPb& physical_pb,
       size_t lut_output_mask = circuit_lib.port_lut_output_mask(lut_model_output_port)[output_pin->pin_number];
       const AtomNetlist::TruthTable& frac_lut_tt = adapt_truth_table_for_frac_lut(lut_frac_level, lut_output_mask, adapt_tt);
       physical_pb.set_truth_table(lut_pb_id, output_pin, frac_lut_tt);
+
+      /* Print debug information */
+      VTR_LOGV(verbose, "Input nets: ");
+      for (const AtomNetId& net : input_nets) {
+        if (AtomNetId::INVALID() == net) {
+          VTR_LOGV(verbose, "unconn  ");
+        } else {
+          VTR_ASSERT(AtomNetId::INVALID() != net);
+          VTR_LOGV(verbose, "%s  ", atom_ctx.nlist.net_name(net).c_str());
+        }
+      }
+      VTR_LOGV(verbose, "\n");
+
+      VTR_ASSERT(AtomNetId::INVALID() != output_net);
+      VTR_LOGV(verbose, "Output net: %s\n", atom_ctx.nlist.net_name(output_net).c_str());
+
+      VTR_LOGV(verbose,
+               "Add following truth table to pb_graph_pin '%s[%d]'\n", 
+               output_pin->port->name, output_pin->pin_number);
+      for (const std::string& tt_line : truth_table_to_string(frac_lut_tt)) {
+        VTR_LOGV(verbose, "\t%s\n", tt_line.c_str());
+      }
+      VTR_LOGV(verbose, "\n");
     }
   }
 }
@@ -164,7 +187,8 @@ void build_physical_lut_truth_tables(VprClusteringAnnotation& cluster_annotation
                                      const AtomContext& atom_ctx,
                                      const ClusteringContext& cluster_ctx,
                                      const VprDeviceAnnotation& device_annotation,
-                                     const CircuitLibrary& circuit_lib) {
+                                     const CircuitLibrary& circuit_lib,
+                                     const bool& verbose) {
   vtr::ScopedStartFinishTimer timer("Build truth tables for physical LUTs");
 
   for (auto blk_id : cluster_ctx.clb_nlist.blocks()) {
@@ -178,7 +202,7 @@ void build_physical_lut_truth_tables(VprClusteringAnnotation& cluster_annotation
       }
     
       /* Reach here, we have a LUT to deal with. Find the truth tables that mapped to the LUT */
-      build_physical_pb_lut_truth_tables(physical_pb, primitive_pb, atom_ctx, device_annotation, circuit_lib);
+      build_physical_pb_lut_truth_tables(physical_pb, primitive_pb, atom_ctx, device_annotation, circuit_lib, verbose);
     }
   }
 }

openfpga/src/repack/build_physical_truth_table.h

@@ -20,7 +20,8 @@ void build_physical_lut_truth_tables(VprClusteringAnnotation& cluster_annotation
                                      const AtomContext& atom_ctx,
                                      const ClusteringContext& cluster_ctx,
                                      const VprDeviceAnnotation& device_annotation,
-                                     const CircuitLibrary& circuit_lib);
+                                     const CircuitLibrary& circuit_lib,
+                                     const bool& verbose);
 
 } /* end namespace openfpga */
 

openfpga/src/repack/lb_router_utils.cpp

@@ -86,6 +86,16 @@ void save_lb_router_results_to_physical_pb(PhysicalPb& phy_pb,
       VTR_ASSERT(true == phy_pb.valid_pb_id(pb_id));
 
       const AtomNetId& atom_net = lb_router.net_atom_net_id(net);
+
+      /* Print info to help debug 
+      bool verbose = true;
+      VTR_LOGV(verbose,
+               "\nSave net '%lu' to physical pb_graph_pin '%s.%s[%d]'\n",
+               size_t(atom_net),
+               pb_graph_pin->parent_node->pb_type->name,
+               pb_graph_pin->port->name,
+               pb_graph_pin->pin_number);
+       */
       
       if (AtomNetId::INVALID() == phy_pb.pb_graph_pin_atom_net(pb_id, pb_graph_pin)) {
         phy_pb.set_pb_graph_pin_atom_net(pb_id, pb_graph_pin, atom_net);

openfpga/src/repack/physical_pb.cpp

@@ -81,6 +81,17 @@ AtomNetId PhysicalPb::pb_graph_pin_atom_net(const PhysicalPbId& pb,
   return AtomNetId::INVALID();
 }
 
+bool PhysicalPb::is_wire_lut_output(const PhysicalPbId& pb,
+                                    const t_pb_graph_pin* pb_graph_pin) const {
+  VTR_ASSERT(true == valid_pb_id(pb));
+  if (wire_lut_outputs_[pb].find(pb_graph_pin) != wire_lut_outputs_[pb].end()) {
+    /* Find it, return the status */
+    return wire_lut_outputs_[pb].at(pb_graph_pin); 
+  }
+  /* Not found, return false */
+  return false;
+}
+
 std::map<const t_pb_graph_pin*, AtomNetlist::TruthTable> PhysicalPb::truth_tables(const PhysicalPbId& pb) const {
   VTR_ASSERT(true == valid_pb_id(pb));
   return truth_tables_[pb];
@@ -110,6 +121,7 @@ PhysicalPbId PhysicalPb::create_pb(const t_pb_graph_node* pb_graph_node) {
   pb_graph_nodes_.push_back(pb_graph_node);
   atom_blocks_.emplace_back();
   pin_atom_nets_.emplace_back();
+  wire_lut_outputs_.emplace_back();
 
   child_pbs_.emplace_back();
   parent_pbs_.emplace_back();
@@ -182,6 +194,18 @@ void PhysicalPb::set_pb_graph_pin_atom_net(const PhysicalPbId& pb,
   pin_atom_nets_[pb][pb_graph_pin] = atom_net;
 }
 
+void PhysicalPb::set_wire_lut_output(const PhysicalPbId& pb,
+                                     const t_pb_graph_pin* pb_graph_pin,
+                                     const bool& wire_lut_output) {
+  VTR_ASSERT(true == valid_pb_id(pb)); 
+  if (wire_lut_outputs_[pb].end() != wire_lut_outputs_[pb].find(pb_graph_pin)) {
+    VTR_LOG_WARN("Overwrite pb_graph_pin '%s[%d]' status on wire LUT output\n",
+                 pb_graph_pin->port->name, pb_graph_pin->pin_number);
+  }
+
+  wire_lut_outputs_[pb][pb_graph_pin] = wire_lut_output;
+}
+
 /******************************************************************************
  * Private validators/invalidators
  ******************************************************************************/

openfpga/src/repack/physical_pb.h

@@ -50,6 +50,8 @@ class PhysicalPb {
     std::vector<AtomBlockId> atom_blocks(const PhysicalPbId& pb) const;
     AtomNetId pb_graph_pin_atom_net(const PhysicalPbId& pb,
                                     const t_pb_graph_pin* pb_graph_pin) const;
+    bool is_wire_lut_output(const PhysicalPbId& pb,
+                            const t_pb_graph_pin* pb_graph_pin) const;
     std::map<const t_pb_graph_pin*, AtomNetlist::TruthTable> truth_tables(const PhysicalPbId& pb) const;
     std::vector<size_t> mode_bits(const PhysicalPbId& pb) const;
   public: /* Public mutators */
@@ -67,6 +69,9 @@ class PhysicalPb {
     void set_pb_graph_pin_atom_net(const PhysicalPbId& pb,
                                    const t_pb_graph_pin* pb_graph_pin,
                                    const AtomNetId& atom_net);
+    void set_wire_lut_output(const PhysicalPbId& pb,
+                             const t_pb_graph_pin* pb_graph_pin,
+                             const bool& wire_lut_output);
   public: /* Public validators/invalidators */
     bool valid_pb_id(const PhysicalPbId& pb_id) const;
     bool empty() const;
@@ -76,6 +81,7 @@ class PhysicalPb {
     vtr::vector<PhysicalPbId, std::string> names_;
     vtr::vector<PhysicalPbId, std::vector<AtomBlockId>> atom_blocks_;
     vtr::vector<PhysicalPbId, std::map<const t_pb_graph_pin*, AtomNetId>> pin_atom_nets_;
+    vtr::vector<PhysicalPbId, std::map<const t_pb_graph_pin*, bool>> wire_lut_outputs_;
 
     /* Child pbs are organized as [0..num_child_pb_types-1][0..child_pb_type->num_pb-1] */
     vtr::vector<PhysicalPbId, std::map<const t_pb_type*, std::vector<PhysicalPbId>>> child_pbs_;

openfpga/src/repack/repack.cpp

@@ -278,17 +278,20 @@ void add_lb_router_nets(LbRouter& lb_router,
     VTR_ASSERT(sink_lb_rr_nodes.size() == sink_pb_graph_pins.size());
 
     /* Printf for debugging only, may be enabled if verbose is enabled
-    VTR_LOG("Pb route for Net %s:\n", 
-            atom_ctx.nlist.net_name(atom_net_id).c_str());
-    VTR_LOG("Source node:\n\t%s -> %s\n",
-            source_pb_pin->to_string().c_str(),
-            source_pb_pin->to_string().c_str());
-    VTR_LOG("Sink nodes:\n");
-    for (t_pb_graph_pin* sink_pb_pin : sink_pb_graph_pins) {
-      VTR_LOG("\t%s\n",
-              sink_pb_pin->to_string().c_str());
-    }
      */
+    VTR_LOGV(verbose,
+             "Pb route for Net %s:\n", 
+             atom_ctx.nlist.net_name(atom_net_id).c_str());
+    VTR_LOGV(verbose,
+             "Source node:\n\t%s -> %s\n",
+             source_pb_pin->to_string().c_str(),
+             source_pb_pin->to_string().c_str());
+    VTR_LOGV(verbose, "Sink nodes:\n");
+    for (t_pb_graph_pin* sink_pb_pin : sink_pb_graph_pins) {
+      VTR_LOGV(verbose,
+               "\t%s\n",
+               sink_pb_pin->to_string().c_str());
+    }
 
     /* Add the net */
     add_lb_router_net_to_route(lb_router, lb_rr_graph,
@@ -341,17 +344,20 @@ void add_lb_router_nets(LbRouter& lb_router,
     VTR_ASSERT(sink_lb_rr_nodes.size() == sink_pb_graph_pins.size());
 
     /* Printf for debugging only, may be enabled if verbose is enabled
-    VTR_LOG("Pb route for Net %s:\n", 
-            atom_ctx.nlist.net_name(atom_net_id).c_str());
-    VTR_LOG("Source node:\n\t%s -> %s\n",
-            source_pb_pin->to_string().c_str(),
-            physical_source_pb_pin->to_string().c_str());
-    VTR_LOG("Sink nodes:\n");
-    for (t_pb_graph_pin* sink_pb_pin : sink_pb_graph_pins) {
-      VTR_LOG("\t%s\n",
-              sink_pb_pin->to_string().c_str());
-    }
      */
+    VTR_LOGV(verbose,
+             "Pb route for Net %s:\n", 
+             atom_ctx.nlist.net_name(atom_net_id).c_str());
+    VTR_LOGV(verbose,
+             "Source node:\n\t%s -> %s\n",
+             source_pb_pin->to_string().c_str(),
+             physical_source_pb_pin->to_string().c_str());
+    VTR_LOGV(verbose, "Sink nodes:\n");
+    for (t_pb_graph_pin* sink_pb_pin : sink_pb_graph_pins) {
+      VTR_LOGV(verbose,
+               "\t%s\n",
+               sink_pb_pin->to_string().c_str());
+    }
 
     /* Add the net */
     add_lb_router_net_to_route(lb_router, lb_rr_graph,
@@ -429,7 +435,8 @@ void repack_cluster(const AtomContext& atom_ctx,
                                            clustering_ctx.clb_nlist.block_pb(block_id),
                                            clustering_ctx.clb_nlist.block_pb(block_id)->pb_route,
                                            atom_ctx,
-                                           device_annotation);
+                                           device_annotation,
+                                           verbose);
   /* Save routing results */
   save_lb_router_results_to_physical_pb(phy_pb, lb_router, lb_rr_graph);
   VTR_LOGV(verbose, "Saved results in physical pb\n");

openfpga/src/utils/lut_utils.cpp

@@ -473,6 +473,29 @@ std::vector<bool> build_frac_lut_bitstream(const CircuitLibrary& circuit_lib,
     VTR_ASSERT(bitstream_offset < lut_bitstream.size());
     VTR_ASSERT(bitstream_offset + length_of_temp_bitstream_to_copy <= lut_bitstream.size());
 
+    /* Print debug information 
+    bool verbose = true;
+    VTR_LOGV(verbose, "Full truth table\n");
+    for (const std::string& tt_line : truth_table_to_string(element.second)) {
+      VTR_LOGV(verbose, "\t%s\n", tt_line.c_str());
+    }
+    VTR_LOGV(verbose, "\n");
+
+    VTR_LOGV(verbose, "Bitstream (size = %ld)\n", temp_bitstream.size());
+    for (const bool& bit : temp_bitstream) {
+      if (true == bit) {
+        VTR_LOGV(verbose, "1");
+      } else {
+        VTR_ASSERT(false == bit);
+        VTR_LOGV(verbose, "0");
+      }
+    }
+    VTR_LOGV(verbose, "\n");
+
+    VTR_LOGV(verbose, "Bitstream offset = %d\n", bitstream_offset);
+    VTR_LOGV(verbose, "Bitstream length to be used = %d\n", length_of_temp_bitstream_to_copy);
+     */
+
     /* Copy to the segment of bitstream */
     for (size_t bit = bitstream_offset; bit < bitstream_offset + length_of_temp_bitstream_to_copy; ++bit) {
       lut_bitstream[bit] = temp_bitstream[bit];

openfpga/src/utils/pb_type_utils.h

@@ -17,6 +17,15 @@
 /* begin namespace openfpga */
 namespace openfpga {
 
+/* Constants */
+
+/* Mode index of a LUT pb_type
+ * Mode 0 is the wire mode
+ * Mode 1 is the lut mode
+ */
+constexpr int VPR_PB_TYPE_WIRE_MODE = 0;
+constexpr int VPR_PB_TYPE_LUT_MODE = 1;
+
 bool is_primitive_pb_type(t_pb_type* pb_type); 
 
 bool is_root_pb_type(t_pb_type* pb_type);

openfpga/src/utils/physical_pb_utils.cpp

@@ -132,6 +132,16 @@ void update_primitive_physical_pb_pin_atom_net(PhysicalPb& phy_pb,
     t_pb_graph_pin* physical_pb_graph_pin = device_annotation.physical_pb_graph_pin(pb_graph_pin);
     VTR_ASSERT(nullptr != physical_pb_graph_pin);
 
+    /* Print info to help debug 
+    bool verbose = true;
+    VTR_LOGV(verbose,
+             "\nSynchronize net '%lu' to physical pb_graph_pin '%s.%s[%d]'\n",
+             size_t(atom_net),
+             pb_graph_pin->parent_node->pb_type->name,
+             pb_graph_pin->port->name,
+             pb_graph_pin->pin_number);
+     */
+
     /* Check if the pin has been mapped to a net.
      * If yes, the atom net must be the same 
      */
@@ -155,6 +165,7 @@ void synchronize_primitive_physical_pb_atom_nets(PhysicalPb& phy_pb,
                                                  const AtomBlockId& atom_blk,
                                                  const VprDeviceAnnotation& device_annotation) {
   /* Iterate over all the ports: input, output and clock */
+
   for (int iport = 0; iport < pb_graph_node->num_input_ports; ++iport) {
     for (int ipin = 0; ipin < pb_graph_node->num_input_pins[iport]; ++ipin) {
       /* Port exists (some LUTs may have no input and hence no port in the atom netlist) */
@@ -219,6 +230,46 @@ void synchronize_primitive_physical_pb_atom_nets(PhysicalPb& phy_pb,
   }
 }
 
+/************************************************************************
+ * Reach this function, the primitive pb should be 
+ * - linked to a LUT pb_type
+ * - operating in the wire mode of a LUT
+ *
+ * Note: this function will not check the prequistics here
+ *       Users must be responsible for this!!!
+ *
+ * This function will find the physical pb_graph_pin for each output 
+ * of the pb_graph node and mark in the physical_pb database
+ * as driven by an wired LUT
+ ***********************************************************************/
+static 
+void mark_physical_pb_wired_lut_outputs(PhysicalPb& phy_pb, 
+                                        const PhysicalPbId& primitive_pb,
+                                        const t_pb_graph_node* pb_graph_node,
+                                        const VprDeviceAnnotation& device_annotation,
+                                        const bool& verbose) {
+
+  for (int iport = 0; iport < pb_graph_node->num_output_ports; ++iport) {
+    for (int ipin = 0; ipin < pb_graph_node->num_output_pins[iport]; ++ipin) {
+      t_pb_graph_pin* pb_graph_pin = &(pb_graph_node->output_pins[iport][ipin]);
+
+      /* Find the physical pb_graph_pin */
+      t_pb_graph_pin* physical_pb_graph_pin = device_annotation.physical_pb_graph_pin(pb_graph_pin);
+      VTR_ASSERT(nullptr != physical_pb_graph_pin);
+
+      /* Print debug info */
+      VTR_LOGV(verbose,
+               "Mark physical pb_graph pin '%s.%s[%d]' as wire LUT output\n",
+               physical_pb_graph_pin->parent_node->pb_type->name,
+               physical_pb_graph_pin->port->name,
+               physical_pb_graph_pin->pin_number);
+
+      /* Label the pins in physical_pb as driven by wired LUT*/
+      phy_pb.set_wire_lut_output(primitive_pb, physical_pb_graph_pin, true);
+    }
+  }
+}
+
 /************************************************************************
  * Synchronize mapping results from an operating pb to a physical pb
  ***********************************************************************/
@@ -226,7 +277,8 @@ void rec_update_physical_pb_from_operating_pb(PhysicalPb& phy_pb,
                                               const t_pb* op_pb,
                                               const t_pb_routes& pb_route,
                                               const AtomContext& atom_ctx,
-                                              const VprDeviceAnnotation& device_annotation) {
+                                              const VprDeviceAnnotation& device_annotation,
+                                              const bool& verbose) {
   t_pb_graph_node* pb_graph_node = op_pb->pb_graph_node;
   t_pb_type* pb_type = pb_graph_node->pb_type;
 
@@ -265,7 +317,49 @@ void rec_update_physical_pb_from_operating_pb(PhysicalPb& phy_pb,
                                                  &(op_pb->child_pbs[ipb][jpb]),
                                                  pb_route,
                                                  atom_ctx,
-                                                 device_annotation);
+                                                 device_annotation,
+                                                 verbose);
+      } else {
+        /* Some pb may be used just in routing purpose, find out the output nets  */
+        /* The following code is inspired by output_cluster.cpp */
+        bool is_used = false;
+        t_pb_type* child_pb_type = &(mapped_mode->pb_type_children[ipb]);
+        int port_index = 0;
+        t_pb_graph_node* child_pb_graph_node = &(pb_graph_node->child_pb_graph_nodes[op_pb->mode][ipb][jpb]);
+
+        for (int k = 0; k < child_pb_type->num_ports && !is_used; k++) {
+          if (OUT_PORT == child_pb_type->ports[k].type) {
+            for (int m = 0; m < child_pb_type->ports[k].num_pins; m++) {
+              int node_index = child_pb_graph_node->output_pins[port_index][m].pin_count_in_cluster;
+              if (pb_route.count(node_index) && pb_route[node_index].atom_net_id) {
+                is_used = true;
+                break;
+              }
+            }
+            port_index++;
+          }
+        }
+        /* Identify output pb_graph_pin that is driven by a wired LUT
+         * Without this function, physical Look-Up Table build-up will cause errors
+         * and bitstream will be incorrect!!!
+         */
+        if (true == is_used) {
+          VTR_ASSERT(LUT_CLASS == child_pb_type->class_type);
+
+          t_pb_graph_node* physical_pb_graph_node = device_annotation.physical_pb_graph_node(child_pb_graph_node);
+          VTR_ASSERT(nullptr != physical_pb_graph_node);
+          /* Find the physical pb */
+          const PhysicalPbId& physical_pb = phy_pb.find_pb(physical_pb_graph_node);
+          VTR_ASSERT(true == phy_pb.valid_pb_id(physical_pb));
+
+          /* Set the mode bits */
+          phy_pb.set_mode_bits(physical_pb, device_annotation.pb_type_mode_bits(child_pb_type));
+
+          mark_physical_pb_wired_lut_outputs(phy_pb, physical_pb,
+                                             child_pb_graph_node,
+                                             device_annotation,
+                                             verbose);
+        }
       }
     }
   }

openfpga/src/utils/physical_pb_utils.h

@@ -28,7 +28,8 @@ void rec_update_physical_pb_from_operating_pb(PhysicalPb& phy_pb,
                                               const t_pb* op_pb,
                                               const t_pb_routes& pb_route,
                                               const AtomContext& atom_ctx,
-                                              const VprDeviceAnnotation& device_annotation);
+                                              const VprDeviceAnnotation& device_annotation,
+                                              const bool& verbose);
 
 } /* end namespace openfpga */
 

openfpga_flow/tasks/openfpga_shell/frac_lut/config/task.conf

@@ -21,8 +21,8 @@ openfpga_arch_file=${PATH:OPENFPGA_PATH}/openfpga_flow/openfpga_arch/k6_frac_N10
 arch0=${PATH:OPENFPGA_PATH}/openfpga_flow/arch/vpr_only_templates/k6_frac_N10_tileable_40nm.xml
 
 [BENCHMARKS]
-bench0=${PATH:OPENFPGA_PATH}/openfpga_flow/benchmarks/micro_benchmark/and/and.blif
+#bench0=${PATH:OPENFPGA_PATH}/openfpga_flow/benchmarks/micro_benchmark/and/and.blif
-#bench1=${PATH:OPENFPGA_PATH}/openfpga_flow/benchmarks/micro_benchmark/and_latch/and_latch.blif
+bench1=${PATH:OPENFPGA_PATH}/openfpga_flow/benchmarks/micro_benchmark/and_latch/and_latch.blif
 
 [SYNTHESIS_PARAM]
 bench0_top = top
@@ -30,8 +30,8 @@ bench0_act = ${PATH:OPENFPGA_PATH}/openfpga_flow/benchmarks/micro_benchmark/and/
 bench0_verilog = ${PATH:OPENFPGA_PATH}/openfpga_flow/benchmarks/micro_benchmark/and/and.v
 
 bench1_top = top
-bench1_act = ${PATH:OPENFPGA_PATH}/openfpga_flow/benchmarks/micro_benchmark/and/and_latch.act
+bench1_act = ${PATH:OPENFPGA_PATH}/openfpga_flow/benchmarks/micro_benchmark/and_latch/and_latch.act
-bench1_verilog = ${PATH:OPENFPGA_PATH}/openfpga_flow/benchmarks/micro_benchmark/and/and_latch.v
+bench1_verilog = ${PATH:OPENFPGA_PATH}/openfpga_flow/benchmarks/micro_benchmark/and_latch/and_latch.v
 
 [SCRIPT_PARAM_MIN_ROUTE_CHAN_WIDTH]
 end_flow_with_test=