diff --git a/libopenfpga/libfpgabitstream/src/report_arch_bitstream_distribution.cpp b/libopenfpga/libfpgabitstream/src/report_arch_bitstream_distribution.cpp
index b6bf66d96..b5237cda5 100644
--- a/libopenfpga/libfpgabitstream/src/report_arch_bitstream_distribution.cpp
+++ b/libopenfpga/libfpgabitstream/src/report_arch_bitstream_distribution.cpp
@@ -23,29 +23,6 @@
 /* begin namespace openfpga */
 namespace openfpga {
 
-/********************************************************************
- * This function write header information for an XML file of bitstream distribution
- *******************************************************************/
-static 
-void report_architecture_bitstream_distribution_xml_file_head(std::fstream& fp,
-                                                              const bool& include_time_stamp) {
-  valid_file_stream(fp);
- 
-  fp << "<!-- " << std::endl;
-  fp << "\t- Report Architecture Bitstream Distribution" << std::endl;
-
-  if (include_time_stamp) {
-    auto end = std::chrono::system_clock::now(); 
-    std::time_t end_time = std::chrono::system_clock::to_time_t(end);
-    /* Note that version is also a type of time stamp */
-    fp << "\t- Version: " << openfpga::VERSION << std::endl;
-    fp << "\t- Date: " << std::ctime(&end_time) ;
-  }
-
-  fp << "--> " << std::endl;
-  fp << std::endl;
-}
-
 /********************************************************************
  * Recursively report the bitstream distribution of a block to a file
  * This function will use a Depth-First Search in outputting bitstream
@@ -91,27 +68,19 @@ void rec_report_block_bitstream_distribution_to_xml_file(std::fstream& fp,
  * Notes: 
  *   - The output format is a table whose format is compatible with RST files
  *******************************************************************/
-int report_architecture_bitstream_distribution(const BitstreamManager& bitstream_manager,
-                                               const std::string& fname,
-                                               const bool& include_time_stamp,
-                                               const size_t& max_hierarchy_level) {
-  /* Ensure that we have a valid file name */
-  if (true == fname.empty()) {
-    VTR_LOG_ERROR("Received empty file name to report bitstream!\n\tPlease specify a valid file name.\n");
-    return 1;
-  }
-
-  std::string timer_message = std::string("Report architecture bitstream distribution into XML file '") + fname + std::string("'");
+int report_architecture_bitstream_distribution(std::fstream& fp,
+                                               const BitstreamManager& bitstream_manager,
+                                               const size_t& max_hierarchy_level,
+                                               const size_t& hierarchy_level) {
+  std::string timer_message = std::string("Report architecture bitstream distribution");
   vtr::ScopedStartFinishTimer timer(timer_message);
 
-  /* Create the file stream */
-  std::fstream fp;
-  fp.open(fname, std::fstream::out | std::fstream::trunc);
+  /* Check the file stream */
+  valid_file_stream(fp);
 
-  check_file_stream(fname.c_str(), fp);
-
-  /* Put down a brief introduction */
-  report_architecture_bitstream_distribution_xml_file_head(fp, include_time_stamp);
+  int curr_level = hierarchy_level;
+  write_tab_to_file(fp, curr_level);
+  fp << "<blocks>" <<std::endl;
 
   /* Find the top block, which has not parents */
   std::vector<ConfigBlockId> top_block = find_bitstream_manager_top_blocks(bitstream_manager);
@@ -119,10 +88,9 @@ int report_architecture_bitstream_distribution(const BitstreamManager& bitstream
   VTR_ASSERT(1 == top_block.size());
 
   /* Write bitstream, block by block, in a recursive way */
-  rec_report_block_bitstream_distribution_to_xml_file(fp, bitstream_manager, top_block[0], max_hierarchy_level, 0);
+  rec_report_block_bitstream_distribution_to_xml_file(fp, bitstream_manager, top_block[0], max_hierarchy_level, curr_level + 1);
 
-  /* Close file handler */
-  fp.close();
+  fp << "</blocks>" <<std::endl;
 
   return 0;
 }
diff --git a/libopenfpga/libfpgabitstream/src/report_arch_bitstream_distribution.h b/libopenfpga/libfpgabitstream/src/report_arch_bitstream_distribution.h
index 4b684d3b8..975e44a18 100644
--- a/libopenfpga/libfpgabitstream/src/report_arch_bitstream_distribution.h
+++ b/libopenfpga/libfpgabitstream/src/report_arch_bitstream_distribution.h
@@ -14,10 +14,10 @@
 /* begin namespace openfpga */
 namespace openfpga {
 
-int report_architecture_bitstream_distribution(const BitstreamManager& bitstream_manager,
-                                               const std::string& fname,
-                                               const bool& include_time_stamp,
-                                               const size_t& max_hierarchy_level = 1);
+int report_architecture_bitstream_distribution(std::fstream& fp,
+                                               const BitstreamManager& bitstream_manager,
+                                               const size_t& max_hierarchy_level,
+                                               const size_t& hierarchy_level);
 
 } /* end namespace openfpga */
 
diff --git a/libopenfpga/libfpgabitstream/test/test_arch_bitstream.cpp b/libopenfpga/libfpgabitstream/test/test_arch_bitstream.cpp
index ed88406c5..0f94353f3 100644
--- a/libopenfpga/libfpgabitstream/test/test_arch_bitstream.cpp
+++ b/libopenfpga/libfpgabitstream/test/test_arch_bitstream.cpp
@@ -3,6 +3,7 @@
  * 1. parser of data structures
  * 2. writer of data structures
  *******************************************************************/
+#include <fstream>
 /* Headers from vtrutils */
 #include "vtr_assert.h"
 #include "vtr_log.h"
@@ -36,11 +37,12 @@ int main(int argc, const char** argv) {
    * This is optional only used when there is a third argument
    */
   if (4 <= argc) { 
-    openfpga::report_architecture_bitstream_distribution(test_bitstream, argv[3], true);
-    VTR_LOG("Echo the bitstream distribution (with time stamp) to an XML file: %s.\n",
-            argv[3]);
-    openfpga::report_architecture_bitstream_distribution(test_bitstream, argv[3], false);
-    VTR_LOG("Echo the bitstream distribution (w/o time stamp) to an XML file: %s.\n",
+    /* Create the file stream */
+    std::fstream fp;
+    fp.open(argv[3], std::fstream::out | std::fstream::trunc);
+
+    openfpga::report_architecture_bitstream_distribution(fp, test_bitstream, 1, 0);
+    VTR_LOG("Echo the bitstream distribution to an XML file: %s.\n",
             argv[3]);
   }
 
diff --git a/openfpga/src/base/openfpga_bitstream.cpp b/openfpga/src/base/openfpga_bitstream.cpp
index 43d9801b3..91362f55c 100644
--- a/openfpga/src/base/openfpga_bitstream.cpp
+++ b/openfpga/src/base/openfpga_bitstream.cpp
@@ -15,7 +15,7 @@
 /* Headers from fpgabitstream library */
 #include "read_xml_arch_bitstream.h"
 #include "write_xml_arch_bitstream.h"
-#include "report_arch_bitstream_distribution.h"
+#include "report_bitstream_distribution.h"
 
 #include "openfpga_naming.h"
 
@@ -218,10 +218,11 @@ int report_bitstream_distribution(const OpenfpgaContext& openfpga_ctx,
     }
   }
 
-  status = report_architecture_bitstream_distribution(openfpga_ctx.bitstream_manager(),
-                                                      cmd_context.option_value(cmd, opt_file),
-                                                      !cmd_context.option_enable(cmd, opt_no_time_stamp),
-                                                      depth);
+  status = report_bitstream_distribution(cmd_context.option_value(cmd, opt_file),
+                                         openfpga_ctx.bitstream_manager(),
+                                         openfpga_ctx.fabric_bitstream(),
+                                         !cmd_context.option_enable(cmd, opt_no_time_stamp),
+                                         depth);
   
   return status;
 }
diff --git a/openfpga/src/fpga_bitstream/report_bitstream_distribution.cpp b/openfpga/src/fpga_bitstream/report_bitstream_distribution.cpp
new file mode 100644
index 000000000..3b3b14998
--- /dev/null
+++ b/openfpga/src/fpga_bitstream/report_bitstream_distribution.cpp
@@ -0,0 +1,96 @@
+/********************************************************************
+ * This file includes functions that report distribution of bitstream by regions
+ *******************************************************************/
+#include <chrono>
+#include <ctime>
+#include <fstream>
+
+/* Headers from vtrutil library */
+#include "vtr_assert.h"
+#include "vtr_log.h"
+#include "vtr_time.h"
+
+/* Headers from openfpgautil library */
+#include "openfpga_digest.h"
+#include "openfpga_tokenizer.h"
+#include "openfpga_version.h"
+
+#include "openfpga_reserved_words.h"
+
+#include "report_arch_bitstream_distribution.h"
+#include "report_fabric_bitstream_distribution.h"
+#include "report_bitstream_distribution.h"
+
+/* begin namespace openfpga */
+namespace openfpga {
+
+/********************************************************************
+ * This function write header information for an XML file of bitstream distribution
+ *******************************************************************/
+static 
+void report_bitstream_distribution_xml_file_head(std::fstream& fp,
+                                                 const bool& include_time_stamp) {
+  valid_file_stream(fp);
+ 
+  fp << "<!-- " << std::endl;
+  fp << "\t- Report Bitstream Distribution" << std::endl;
+
+  if (include_time_stamp) {
+    auto end = std::chrono::system_clock::now(); 
+    std::time_t end_time = std::chrono::system_clock::to_time_t(end);
+    /* Note that version is also a type of time stamp */
+    fp << "\t- Version: " << openfpga::VERSION << std::endl;
+    fp << "\t- Date: " << std::ctime(&end_time) ;
+  }
+
+  fp << "--> " << std::endl;
+  fp << std::endl;
+}
+
+/********************************************************************
+ * Report the distribution of bitstream at architecture-level and fabric-level
+ * This function can generate a report to a file 
+ *******************************************************************/
+int report_bitstream_distribution(const std::string& fname,
+                                  const BitstreamManager& bitstream_manager,
+                                  const FabricBitstream& fabric_bitstream,
+                                  const bool& include_time_stamp,
+                                  const size_t& max_hierarchy_level) {
+  /* Ensure that we have a valid file name */
+  if (true == fname.empty()) {
+    VTR_LOG_ERROR("Received empty file name to report bitstream!\n\tPlease specify a valid file name.\n");
+    return 1;
+  }
+
+  std::string timer_message = std::string("Report bitstream distribution into XML file '") + fname + std::string("'");
+  vtr::ScopedStartFinishTimer timer(timer_message);
+
+  /* Create the file stream */
+  std::fstream fp;
+  fp.open(fname, std::fstream::out | std::fstream::trunc);
+
+  check_file_stream(fname.c_str(), fp);
+
+  /* Put down a brief introduction */
+  report_bitstream_distribution_xml_file_head(fp, include_time_stamp);
+
+  int curr_level = 0;
+  write_tab_to_file(fp, curr_level);
+  fp << "<bitstream_distribution>" <<std::endl;
+
+  int status = 0;
+  status = report_fabric_bitstream_distribution(fp, fabric_bitstream, curr_level + 1);
+  if (status == 1) {
+    return status;
+  }
+  status = report_architecture_bitstream_distribution(fp, bitstream_manager, max_hierarchy_level, curr_level + 1);
+
+  fp << "</bitstream_distribution>" <<std::endl;
+
+  /* Close file handler */
+  fp.close();
+
+  return status;
+}
+
+} /* end namespace openfpga */
diff --git a/openfpga/src/fpga_bitstream/report_bitstream_distribution.h b/openfpga/src/fpga_bitstream/report_bitstream_distribution.h
new file mode 100644
index 000000000..1b175a05b
--- /dev/null
+++ b/openfpga/src/fpga_bitstream/report_bitstream_distribution.h
@@ -0,0 +1,25 @@
+#ifndef REPORT_BITSTREAM_DISTRIBUTION_H
+#define REPORT_BITSTREAM_DISTRIBUTION_H
+
+/********************************************************************
+ * Include header files that are required by function declaration
+ *******************************************************************/
+#include <string>
+#include "fabric_bitstream.h"
+
+/********************************************************************
+ * Function declaration
+ *******************************************************************/
+
+/* begin namespace openfpga */
+namespace openfpga {
+
+int report_bitstream_distribution(const std::string& fname,
+                                  const BitstreamManager& bitstream_manager,
+                                  const FabricBitstream& fabric_bitstream,
+                                  const bool& include_time_stamp,
+                                  const size_t& max_hierarchy_level = 1);
+
+} /* end namespace openfpga */
+
+#endif
diff --git a/openfpga/src/fpga_bitstream/report_fabric_bitstream_distribution.cpp b/openfpga/src/fpga_bitstream/report_fabric_bitstream_distribution.cpp
new file mode 100644
index 000000000..87f81df10
--- /dev/null
+++ b/openfpga/src/fpga_bitstream/report_fabric_bitstream_distribution.cpp
@@ -0,0 +1,78 @@
+/********************************************************************
+ * This file includes functions that report distribution of bitstream by regions
+ *******************************************************************/
+#include <chrono>
+#include <ctime>
+#include <fstream>
+
+/* Headers from vtrutil library */
+#include "vtr_assert.h"
+#include "vtr_log.h"
+#include "vtr_time.h"
+
+/* Headers from openfpgautil library */
+#include "openfpga_digest.h"
+#include "openfpga_tokenizer.h"
+#include "openfpga_version.h"
+
+#include "openfpga_reserved_words.h"
+
+#include "bitstream_manager_utils.h"
+#include "report_fabric_bitstream_distribution.h"
+
+/* begin namespace openfpga */
+namespace openfpga {
+
+/********************************************************************
+ * Recursively report the bitstream distribution of a block to a file
+ * This function will use a Depth-First Search in outputting bitstream
+ * for each block 
+ * For block with child blocks, we visit each child recursively
+ * The reporting can be stopped at a given maximum hierarchy level 
+ * which is used to limit the length of the report
+ *******************************************************************/
+static 
+void report_region_bitstream_distribution_to_xml_file(std::fstream& fp,
+                                                      const FabricBitstream& fabric_bitstream, 
+                                                      const FabricBitRegionId& region,
+                                                      const int& hierarchy_level) {
+  valid_file_stream(fp);
+
+  /* Write the bitstream distribution of this block */
+  write_tab_to_file(fp, hierarchy_level);
+  fp << "<region";
+  fp << " id=\"" << size_t(region) << "\"";
+  fp << " number_of_bits=\"" << fabric_bitstream.region_bits(region).size() << "\"";
+  fp << ">" << std::endl;
+
+  write_tab_to_file(fp, hierarchy_level);
+  fp << "</region>" <<std::endl;
+}
+
+/********************************************************************
+ * Report the distribution of bitstream by regions
+ * This function can generate a report to a file 
+ *******************************************************************/
+int report_fabric_bitstream_distribution(std::fstream& fp,
+                                         const FabricBitstream& fabric_bitstream,
+                                         const int& hierarchy_level) {
+  std::string timer_message = std::string("Report fabric bitstream distribution");
+  vtr::ScopedStartFinishTimer timer(timer_message);
+
+  valid_file_stream(fp);
+
+  /* Write bitstream, region by region, in a recursive way */
+  int curr_level = hierarchy_level;
+  for (const FabricBitRegionId& region : fabric_bitstream.regions()) {
+    write_tab_to_file(fp, curr_level);
+    fp << "<regions>" <<std::endl;
+    report_region_bitstream_distribution_to_xml_file(fp, fabric_bitstream, region, curr_level + 1);
+    write_tab_to_file(fp, curr_level);
+    fp << "</regions>" <<std::endl;
+
+  }
+
+  return 0;
+}
+
+} /* end namespace openfpga */
diff --git a/openfpga/src/fpga_bitstream/report_fabric_bitstream_distribution.h b/openfpga/src/fpga_bitstream/report_fabric_bitstream_distribution.h
new file mode 100644
index 000000000..2ff5ed081
--- /dev/null
+++ b/openfpga/src/fpga_bitstream/report_fabric_bitstream_distribution.h
@@ -0,0 +1,23 @@
+#ifndef REPORT_FABRIC_BITSTREAM_DISTRIBUTION_H
+#define REPORT_FABRIC_BITSTREAM_DISTRIBUTION_H
+
+/********************************************************************
+ * Include header files that are required by function declaration
+ *******************************************************************/
+#include <string>
+#include "fabric_bitstream.h"
+
+/********************************************************************
+ * Function declaration
+ *******************************************************************/
+
+/* begin namespace openfpga */
+namespace openfpga {
+
+int report_fabric_bitstream_distribution(std::fstream& fp,
+                                         const FabricBitstream& fabric_bitstream,
+                                         const int& hierarchy_level);
+
+} /* end namespace openfpga */
+
+#endif