1. Code cleanup.

2. Fix for #7 issue.
3. Readme update.

Author: ykiryano

README.md

@@ -65,23 +65,30 @@ What's New
 New in Intel(R) MPI Benchmarks 2019
 ----------------------------------------
 - New IMB-MT benchmarks.
-  The benchmarks implement the multithreaded version of some of the IMB-MPI1
-  benchmarks using the OpenMP* paradigm. 
+  The benchmarks implement the multi-threaded version of IMB-MPI1 benchmarks 
+  using the OpenMP* paradigm.
 - New benchmarks infrastructure implemented in C++.
-  The IMB-MPI1, IMB-RMA and IMB-MT implementation is now based on the new C++
-  infrastructure (IMB-NBC, IMB-EXT and IMB-IO still use the legacy one).
-  The legacy infrastructure is preserved in src_c subdirectory.
-- Changes in syntax for the -include and -exclude options.
+  The IMB-MPI1, IMB-RMA, IMB-NBC, IMB-EXT, IMB-IO, and IMB-MT implementation 
+  is now based on the new C++ infrastructure.
+  The legacy infrastructure is preserved in the src_c subdirectory.
+- Syntax changes for the -include and -exclude options.
   Benchmarks to include and exclude now must be separated by a comma rather
   than a space. Benchmarks to launch can be separated by a comma or a space.
-- Iteration policy can no longer be set with the -iter option. Use -iter_policy
-  instead.
-- Added a new option -noheader for IMB-MT to disable printing of benchmark headers.
+- Iteration policy can no longer be set with the -iter option. Use the 
+  -iter_policy instead.
 - Added a new benchmark BarrierMT for IMB-MT.
+- Added new options:
+    - -noheader for IMB-MT disables printing of benchmark headers.
+    - -data_type for IMB-MPI1 specifies the type to be used for communication.
+    - -red_data_type for IMB-MPI1 specifies the type to be used for reduction.
+    - -contig_type for IMB-MPI1 specifies the type to be used.
+    - -zero_size for IMB-MPI1 disable runs with message size 0.
+- Bug fixes.
+- Code cleanup.
 
 New in Intel(R) MPI Benchmarks 2018 Update 1
 --------------------------------------------
-- Support for the Microsoft* Visual Studio* 2017. Microsoft* Visual Studio* 2012 
+- Support for the Microsoft* Visual Studio* 2017. Microsoft* Visual Studio* 2012
   support is removed.
 
 New in Intel(R) MPI Benchmarks 2018
@@ -94,15 +101,16 @@ New in Intel(R) MPI Benchmarks 2018
 New in Intel(R) MPI Benchmarks 2017 Update 1
 --------------------------------------------
 - Added a new option -imb_barrier.
-- The PingPong and PingPing benchmarks are now equivalent to PingPongSpecificSource
-  and PingPingSpecificSource, respectively. Their old behavior (with MPI_ANY_SOURCE)
-  is available in PingPongAnySource and PingPingAnySource.
+- The PingPong and PingPing benchmarks are now equivalent to 
+  PingPongSpecificSource and PingPingSpecificSource, respectively. Their old 
+  behavior (with MPI_ANY_SOURCE) is available in PingPongAnySource and 
+  PingPingAnySource.
 
 New in Intel(R) MPI Benchmarks 2017
 -------------------------------------------
 - Changed default values for the -sync and -root_shift options.
 - Support for the Microsoft* Visual Studio* 2015. Microsoft* Visual Studio* 2010
-support is removed.
+  support is removed.
 - Bug fixes.
 
 New in Intel(R) MPI Benchmarks 4.1 Update 1
@@ -112,11 +120,13 @@ New in Intel(R) MPI Benchmarks 4.1 Update 1
 New in Intel(R) MPI Benchmarks 4.1
 -------------------------------------------
 - Introduced two new benchmarks: uniband and biband.
-- Introduced two new command-line options for collective benchmarks: -sync and -root_shift.
+- Introduced two new command-line options for collective benchmarks: -sync and 
+  -root_shift.
 
 New in Intel(R) MPI Benchmarks 4.0 Update 2
 -------------------------------------------
-- Fix of a bug where benchmarking was failing on certain message lengths with -DCHECK.
+- Fix of a bug where benchmarking was failing on certain message lengths with 
+  -DCHECK.
 
 New in Intel(R) MPI Benchmarks 4.0 Update 1
 -------------------------------------------
@@ -125,19 +135,20 @@ New in Intel(R) MPI Benchmarks 4.0 Update 1
 New in Intel(R) MPI Benchmarks 4.0
 -------------------------------------------
 - Introduced new components IMB-NBC and IMB-RMA that conform to the MPI-3.0 
-standard.
-  Note: These components can only be built and used with MPI libraries that conform 
-  to the MPI-3 standard.
+  standard.
+  Note: These components can only be built and used with MPI libraries that 
+  conform to the MPI-3 standard.
 - Added new targets to the Linux* OS Makefiles:
     - NBC for building IMB-NBC
     - RMA for building IMB-RMA 
-- Updated Microsoft* Visual Studio* solutions to include the IMB-NBC and 
-IMB-RMA targets.
+- Updated Microsoft* Visual Studio* solutions to include the IMB-NBC and IMB-RMA 
+  targets.
 - Consolidated all first-use documents in ReadMe_IMB.txt to improve usability.
-- Introduced a new feature to set the appropriate algorithm for automatic calculation
-of iterations. The algorithm can be set through the -iter and -iter_policy options.
+- Introduced a new feature to set the appropriate algorithm for automatic 
+  calculation of iterations. The algorithm can be set through the -iter and 
+  -iter_policy options.
 - Support for the Microsoft* Visual Studio* 2013. Microsoft* Visual Studio* 2008
-support is removed.
+  support is removed.
 
 --------------------
 Command-Line Control
@@ -154,17 +165,18 @@ command-line parameters.
 -----------------------------------------
 Building Instructions for Linux* OS
 -----------------------------------------
-1) Set the CC variable to point to the appropriate compiler wrapper, mpiicc or mpicc.
+1) Set the CC variable to point to the appropriate compiler wrapper, mpiicc or 
+   mpicc.
 2) Run one or more Makefile commands below:
 
    make clean - remove legacy binary object files and executable files
-   make MPI1 - build the executable file for the IMB-MPI1 component
-   make EXT - build the executable file for one-sided communications benchmarks
-   make IO - build the executable file for I/O benchmarks
-   make NBC - build the executable file for IMB-NBC benchmarks
-   make RMA - build the executable file for IMB-RMA benchmarks
+   make IMB-MPI1 - build the executable file for the IMB-MPI1 component
+   make IMB-EXT - build the executable file for one-sided communications benchmarks
+   make IMB-IO - build the executable file for I/O benchmarks
+   make IMB-NBC - build the executable file for IMB-NBC benchmarks
+   make IMB-RMA - build the executable file for IMB-RMA benchmarks
    make all - build all executable files available
-   
+
 3) Run the benchmarks as follows:
 
    mpirun -n <number_of_processes> IMB-<component> [arguments]

ReadMe_IMB.txt

@@ -62,30 +62,29 @@ files and folders appear on your system:
 ----------
 What's New
 ----------
-New in Intel(R) MPI Benchmarks 2019 Beta
+New in Intel(R) MPI Benchmarks 2019
 ----------------------------------------
-- Intel(R) MPI Benchmarks 2019 (Beta) are now available for Windows*.
-- Added a new option -noheader for IMB-MT to disable printing of benchmark headers.
-- Added a new benchmark BarrierMT for IMB-MT.
-- Bug fixes.
-
-New in Intel(R) MPI Benchmarks 2019 Technical Preview
------------------------------------------------------
 - New IMB-MT benchmarks.
-  The benchmarks implement the multithreaded version of some of the IMB-MPI1
-  benchmarks using the OpenMP* paradigm.
-  
+  The benchmarks implement the multi-threaded version of IMB-MPI1 benchmarks 
+  using the OpenMP* paradigm.
 - New benchmarks infrastructure implemented in C++.
-  The IMB-MPI1, IMB-RMA and IMB-MT implementation is now based on the new C++
-  infrastructure (IMB-NBC, IMB-EXT and IMB-IO still use the legacy one).
-  The legacy infrastructure is preserved in legacy subdirectory.
-
-- Changes in syntax for the -include and -exclude options.
+  The IMB-MPI1, IMB-RMA, IMB-NBC, IMB-EXT, IMB-IO, and IMB-MT implementation 
+  is now based on the new C++ infrastructure.
+  The legacy infrastructure is preserved in the src_c subdirectory.
+- Syntax changes for the -include and -exclude options.
   Benchmarks to include and exclude now must be separated by a comma rather
   than a space. Benchmarks to launch can be separated by a comma or a space.
-
-- Iteration policy can no longer be set with the -iter option. Use -iter_policy
-  instead.
+- Iteration policy can no longer be set with the -iter option. Use the 
+  -iter_policy instead.
+- Added a new benchmark BarrierMT for IMB-MT.
+- Added new options:
+    - -noheader for IMB-MT disables printing of benchmark headers.
+    - -data_type for IMB-MPI1 specifies the type to be used for communication.
+    - -red_data_type for IMB-MPI1 specifies the type to be used for reduction.
+    - -contig_type for IMB-MPI1 specifies the type to be used.
+    - -zero_size for IMB-MPI1 disable runs with message size 0.
+- Bug fixes.
+- Code cleanup.
 
 New in Intel(R) MPI Benchmarks 2018 Update 1
 --------------------------------------------
@@ -102,15 +101,16 @@ New in Intel(R) MPI Benchmarks 2018
 New in Intel(R) MPI Benchmarks 2017 Update 1
 --------------------------------------------
 - Added a new option -imb_barrier.
-- The PingPong and PingPing benchmarks are now equivalent to PingPongSpecificSource
-  and PingPingSpecificSource, respectively. Their old behavior (with MPI_ANY_SOURCE)
-  is available in PingPongAnySource and PingPingAnySource.
+- The PingPong and PingPing benchmarks are now equivalent to 
+  PingPongSpecificSource and PingPingSpecificSource, respectively. Their old 
+  behavior (with MPI_ANY_SOURCE) is available in PingPongAnySource and 
+  PingPingAnySource.
 
 New in Intel(R) MPI Benchmarks 2017
 -------------------------------------------
 - Changed default values for the -sync and -root_shift options.
 - Support for the Microsoft* Visual Studio* 2015. Microsoft* Visual Studio* 2010
-support is removed.
+  support is removed.
 - Bug fixes.
 
 New in Intel(R) MPI Benchmarks 4.1 Update 1
@@ -120,11 +120,13 @@ New in Intel(R) MPI Benchmarks 4.1 Update 1
 New in Intel(R) MPI Benchmarks 4.1
 -------------------------------------------
 - Introduced two new benchmarks: uniband and biband.
-- Introduced two new command-line options for collective benchmarks: -sync and -root_shift.
+- Introduced two new command-line options for collective benchmarks: -sync and 
+  -root_shift.
 
 New in Intel(R) MPI Benchmarks 4.0 Update 2
 -------------------------------------------
-- Fix of a bug where benchmarking was failing on certain message lengths with -DCHECK.
+- Fix of a bug where benchmarking was failing on certain message lengths with 
+  -DCHECK.
 
 New in Intel(R) MPI Benchmarks 4.0 Update 1
 -------------------------------------------
@@ -133,19 +135,20 @@ New in Intel(R) MPI Benchmarks 4.0 Update 1
 New in Intel(R) MPI Benchmarks 4.0
 -------------------------------------------
 - Introduced new components IMB-NBC and IMB-RMA that conform to the MPI-3.0 
-standard.
-  Note: These components can only be built and used with MPI libraries that conform 
-  to the MPI-3 standard.
+  standard.
+  Note: These components can only be built and used with MPI libraries that 
+  conform to the MPI-3 standard.
 - Added new targets to the Linux* OS Makefiles:
     - NBC for building IMB-NBC
     - RMA for building IMB-RMA 
-- Updated Microsoft* Visual Studio* solutions to include the IMB-NBC and 
-IMB-RMA targets.
+- Updated Microsoft* Visual Studio* solutions to include the IMB-NBC and IMB-RMA
+  targets.
 - Consolidated all first-use documents in ReadMe_IMB.txt to improve usability.
-- Introduced a new feature to set the appropriate algorithm for automatic calculation
-of iterations. The algorithm can be set through the -iter and -iter_policy options.
+- Introduced a new feature to set the appropriate algorithm for automatic 
+  calculation of iterations. The algorithm can be set through the -iter and 
+  -iter_policy options.
 - Support for the Microsoft* Visual Studio* 2013. Microsoft* Visual Studio* 2008
-support is removed.
+  support is removed.
 
 --------------------
 Command-Line Control
@@ -162,15 +165,16 @@ command-line parameters.
 -----------------------------------------
 Building Instructions for Linux* OS
 -----------------------------------------
-1) Set the CC variable to point to the appropriate compiler wrapper, mpiicc or mpicc.
+1) Set the CC variable to point to the appropriate compiler wrapper, mpiicc or 
+   mpicc.
 2) Run one or more Makefile commands below:
 
    make clean - remove legacy binary object files and executable files
-   make MPI1 - build the executable file for the IMB-MPI1 component
-   make EXT - build the executable file for one-sided communications benchmarks
-   make IO - build the executable file for I/O benchmarks
-   make NBC - build the executable file for IMB-NBC benchmarks
-   make RMA - build the executable file for IMB-RMA benchmarks
+   make IMB-MPI1 - build the executable file for the IMB-MPI1 component
+   make IMB-EXT - build the executable file for one-sided communications benchmarks
+   make IMB-IO - build the executable file for I/O benchmarks
+   make IMB-NBC - build the executable file for IMB-NBC benchmarks
+   make IMB-RMA - build the executable file for IMB-RMA benchmarks
    make all - build all executable files available
 
 3) Run the benchmarks as follows:

src_c/IMB_init_transfer.c

@@ -150,31 +150,33 @@ In/out variables:
 
     if (Bmark->fpointer == indv_block || Bmark->fpointer == shared ||
         Bmark->fpointer == explic) {
-        int bllen[3];
+        int bllen[1];
 
-        MPI_Aint displ[3];
-        MPI_Datatype types[3];
+        MPI_Aint displ[1];
+        MPI_Datatype types[1];
 
-        bllen[0] = 1;
-        displ[0] = 0;
-        types[0] = MPI_LB;
-
-        bllen[1] = baslen;
-        displ[1] = pos1;
-        types[1] = c_info->etype;
-
-        bllen[2] = 1;
-        displ[2] = size;
-        types[2] = MPI_UB;
+        bllen[0] = baslen;
+        displ[0] = pos1;
+        types[0] = c_info->etype;
 
         if (Bmark->fpointer == indv_block) {
             /* July 2002 fix V2.2.1: handle empty view case separately */
             if (baslen > 0) {
+                MPI_Datatype new_type;
                 /* end change */
-                ierr = MPI_Type_create_struct(3, bllen, displ, types, &c_info->view);
+                ierr = MPI_Type_create_struct(1, bllen, displ, types, &new_type);
+                IMB_err_hand(1, ierr);
+                ierr = MPI_Type_commit(&new_type);
+                IMB_err_hand(1, ierr);
+
+                ierr = MPI_Type_create_resized(new_type, 0, size, &c_info->view);
                 IMB_err_hand(1, ierr);
                 ierr = MPI_Type_commit(&c_info->view);
                 IMB_err_hand(1, ierr);
+
+                ierr = MPI_Type_free(&new_type);
+                IMB_err_hand(1, ierr);
+
                 c_info->filetype = c_info->view;
 
                 /* July 2002 fix V2.2.1: handle empty case */
@@ -189,7 +191,7 @@ In/out variables:
         if (Bmark->access == get)
             IMB_set_buf(c_info, c_info->File_rank, 1, 0, 0, (baslen > 0) ? baslen - 1 : 0);
 
-        c_info->split.Locsize = bllen[1];
+        c_info->split.Locsize = bllen[0];
         c_info->split.Offset = pos1;
         c_info->split.Totalsize = size;
     }

src_c/IMB_mem_manager.c

@@ -155,7 +155,7 @@ In/out variables:
 
 
 /***************************************************************************/
-void IMB_alloc_buf(struct comm_info* c_info, char* where, size_t s_len, 
+void IMB_alloc_buf(struct comm_info* c_info, char* where, size_t s_len,
                    size_t r_len) {
 /*
 

src_c/IMB_reduce.c

@@ -147,8 +147,8 @@ Output variables:
 
         for (i = 0; i < ITERATIONS->n_sample; i++) {
             t1 = MPI_Wtime();
-            ierr = MPI_Reduce((char*)c_info->s_buffer + i%ITERATIONS->s_cache_iter*ITERATIONS->s_offs,
-                              (char*)c_info->r_buffer + i%ITERATIONS->r_cache_iter*ITERATIONS->r_offs,
+            ierr = MPI_Reduce((char*)c_info->s_buffer + i % ITERATIONS->s_cache_iter * ITERATIONS->s_offs,
+                              (char*)c_info->r_buffer + i % ITERATIONS->r_cache_iter * ITERATIONS->r_offs,
                               s_num,
                               c_info->red_data_type, c_info->op_type,
                               root,
@@ -159,7 +159,7 @@ Output variables:
 
 #ifdef CHECK
             if (c_info->rank == root) {
-                CHK_DIFF("Reduce", c_info, (char*)c_info->r_buffer + i%ITERATIONS->r_cache_iter*ITERATIONS->r_offs, 0,
+                CHK_DIFF("Reduce", c_info, (char*)c_info->r_buffer + i % ITERATIONS->r_cache_iter*ITERATIONS->r_offs, 0,
                          size, size, asize,
                          put, 0, ITERATIONS->n_sample, i,
                          -1, &defect);