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mpip

About

mpiP is a lightweight profiling library for MPI applications.

  • Software was developed by LLNL (Lawrence Livermore National Laboratory).
  • Collects only statistical information about MPI routines
  • Captures and stores information local to each task (local memory and disk)
  • Uses communication only at the end of the application to merge results from all tasks into one output file.

The MPI call statistical information provided includes:

  • Percent of a task's time attributed to MPI calls
  • Where each MPI call is made within the program (callsites)
  • Top 20 callsites
  • Callsite statistics (for all callsites)

Versions and Availability

Softenv Keys for mpip on painter
Machine Version Softenv Key
painter 3.1.2 +mpiP-3.1.2-intel-11.1-mvapich-1.1
painter 3.1.2 +mpiP-3.1.2-intel-11.1-mvapich2-1.4
▶ Softenv FAQ?

The information here is applicable to LSU HPC and LONI systems.

Shells

A user may choose between using /bin/bash and /bin/tcsh. Details about each shell follows.

/bin/bash

System resource file: /etc/profile

When one access the shell, the following user files are read in if they exist (in order):

  1. ~/.bash_profile (anything sent to STDOUT or STDERR will cause things like rsync to break)
  2. ~/.bashrc (interactive login only)
  3. ~/.profile

When a user logs out of an interactive session, the file ~/.bash_logout is executed if it exists.

The default value of the environmental variable, PATH, is set automatically using SoftEnv. See below for more information.

/bin/tcsh

The file ~/.cshrc is used to customize the user's environment if his login shell is /bin/tcsh.

Softenv

SoftEnv is a utility that is supposed to help users manage complex user environments with potentially conflicting application versions and libraries.

System Default Path

When a user logs in, the system /etc/profile or /etc/csh.cshrc (depending on login shell, and mirrored from csm:/cfmroot/etc/profile) calls /usr/local/packages/softenv-1.6.2/bin/use.softenv.sh to set up the default path via the SoftEnv database.

SoftEnv looks for a user's ~/.soft file and updates the variables and paths accordingly.

Viewing Available Packages

The command softenv will provide a list of available packages. The listing will look something like:

$ softenv
These are the macros available:
*   @default
These are the keywords explicitly available:
+amber-8                       Applications: 'Amber', version: 8 Amber is a
+apache-ant-1.6.5              Ant, Java based XML make system version: 1.6.
+charm-5.9                     Applications: 'Charm++', version: 5.9 Charm++
+default                       this is the default environment...nukes /etc/
+essl-4.2                      Libraries: 'ESSL', version: 4.2 ESSL is a sta
+gaussian-03                   Applications: 'Gaussian', version: 03 Gaussia
... some stuff deleted ...
Managing SoftEnv

The file ~/.soft in the user's home directory is where the different packages are managed. Add the +keyword into your .soft file. For instance, ff one wants to add the Amber Molecular Dynamics package into their environment, the end of the .soft file should look like this:

+amber-8

@default

To update the environment after modifying this file, one simply uses the resoft command:

% resoft

The command soft can be used to manipulate the environment from the command line. It takes the form:

$ soft add/delete +keyword

Using this method of adding or removing keywords requires the user to pay attention to possible order dependencies. That is, best results require the user to remove keywords in the reverse order in which they were added. It is handy to test out individual keys, but can lead to trouble if changing multiple keys. Changing the .soft file and issuing the resoft is the recommended way of dealing with multiple changes.

Usage

Usage involves recompiling a program using the mpiP libraries instead of the standard libraries. Run the program as would be done normally, only look for output files with names of the form:

executable_nm...1.mpiP

▶ Open Example?
@ mpiP
@ Command : ./bin/2dheat.x -v -w 100 -h 100
@ Version                  : 3.1.1
@ MPIP Build date          : Oct 16 2007, 09:41:28
@ Start time               : 2007 10 16 09:54:22
@ Stop time                : 2007 10 16 09:54:37
@ Timer Used               : mread_real_time
@ MPIP env var             : [null]
@ Collector Rank           : 0
@ Collector PID            : 102720
@ Final Output Dir         : .
@ Report generation        : Single collector task
@ MPI Task Assignment      : 0 l2f1n01.sys.loni.org
@ MPI Task Assignment      : 1 l2f1n01.sys.loni.org
@ MPI Task Assignment      : 2 l2f1n01.sys.loni.org
@ MPI Task Assignment      : 3 l2f1n01.sys.loni.org
@ MPI Task Assignment      : 4 l2f1n01.sys.loni.org
@ MPI Task Assignment      : 5 l2f1n01.sys.loni.org
@ MPI Task Assignment      : 6 l2f1n01.sys.loni.org
@ MPI Task Assignment      : 7 l2f1n01.sys.loni.org

---------------------------------------------------------------------------
@--- MPI Time (seconds) ---------------------------------------------------
---------------------------------------------------------------------------
Task    AppTime    MPITime     MPI%
   0       15.3       1.02     6.66
   1       15.3      0.293     1.91
   2       15.3      0.607     3.95
   3       15.3      0.239     1.56
   4       15.3      0.873     5.69
   5       15.3       1.01     6.58
   6       15.3      0.646     4.21
   7       15.3       1.68    10.94
   *        123       6.37     5.19
---------------------------------------------------------------------------
@--- Callsites: 11 --------------------------------------------------------
---------------------------------------------------------------------------
 ID Lev File/Address        Line Parent_Funct             MPI_Call
  1   0 0x1000106f               [unknown]                Reduce
  2   0 0x100010d3               [unknown]                Bcast
  3   0 0x100011f7               [unknown]                Barrier
  4   0 0x1000242f               [unknown]                Recv
  5   0 0x10002233               [unknown]                Isend
  6   0 0x100022a7               [unknown]                Barrier
  7   0 0x10000d1b               [unknown]                Barrier
  8   0 0x1000243b               [unknown]                Barrier
  9   0 0x10000d3b               [unknown]                Bcast
 10   0 0x100023bf               [unknown]                Isend
 11   0 0x1000229b               [unknown]                Recv
---------------------------------------------------------------------------
@--- Aggregate Time (top twenty, descending, milliseconds) ----------------
---------------------------------------------------------------------------
Call                 Site       Time    App%    MPI%     COV
Bcast                   2   4.18e+03    3.40   65.59    1.03
Reduce                  1   1.74e+03    1.42   27.28    1.58
Barrier                 3        135    0.11    2.12    0.14
Barrier                 6        119    0.10    1.87    0.22
Barrier                 8       95.9    0.08    1.51    0.14
Isend                   5       32.8    0.03    0.52    0.26
Recv                   11       25.9    0.02    0.41    0.65
Recv                    4       22.8    0.02    0.36    0.95
Isend                  10       21.1    0.02    0.33    0.14
Barrier                 7      0.875    0.00    0.01    0.46
Bcast                   9      0.591    0.00    0.01    0.30
---------------------------------------------------------------------------
@--- Aggregate Sent Message Size (top twenty, descending, bytes) ----------
---------------------------------------------------------------------------
Call                 Site      Count      Total       Avrg  Sent%
Isend                  10       5250    2.1e+06        400  49.43
Isend                   5       5250    2.1e+06        400  49.43
Reduce                  1       6000    2.4e+04          4   0.56
Bcast                   2       6000    2.4e+04          4   0.56
Bcast                   9          8         32          4   0.00
---------------------------------------------------------------------------
@--- Callsite Time statistics (all, milliseconds): 84 ---------------------
---------------------------------------------------------------------------
Name              Site Rank  Count      Max     Mean      Min   App%   MPI%
Barrier              3    0    749    0.656   0.0203  0.00887   0.10   1.49
Barrier              3    1    749    0.659   0.0226  0.00897   0.11   5.80
Barrier              3    2    749    0.655   0.0204  0.00881   0.10   2.52
Barrier              3    3    749    0.654   0.0222  0.00925   0.11   6.96
Barrier              3    4    749    0.664   0.0267  0.00954   0.13   2.29
Barrier              3    5    749    0.659   0.0265  0.00941   0.13   1.97
Barrier              3    6    749    0.262   0.0236  0.00798   0.12   2.73
Barrier              3    7    749    0.223   0.0179  0.00972   0.09   0.80
Barrier              3    *   5992    0.664   0.0225  0.00798   0.11   2.12

Barrier              6    0    750    0.197   0.0278  0.00677   0.14   2.04
Barrier              6    1    750     0.17   0.0177   0.0066   0.09   4.54
Barrier              6    2    750    0.175   0.0196  0.00648   0.10   2.42
Barrier              6    3    750    0.179   0.0186  0.00663   0.09   5.84
Barrier              6    4    750    0.176   0.0201  0.00707   0.10   1.73
Barrier              6    5    750    0.179   0.0148  0.00665   0.07   1.10
Barrier              6    6    750    0.171   0.0157  0.00673   0.08   1.82
Barrier              6    7    750     0.19   0.0245  0.00827   0.12   1.09
Barrier              6    *   6000    0.197   0.0199  0.00648   0.10   1.87

Barrier              7    0      1   0.0117   0.0117   0.0117   0.00   0.00
Barrier              7    1      1    0.118    0.118    0.118   0.00   0.04
Barrier              7    2      1     0.14     0.14     0.14   0.00   0.02
Barrier              7    3      1     0.11     0.11     0.11   0.00   0.05
Barrier              7    4      1    0.145    0.145    0.145   0.00   0.02
Barrier              7    3      1     0.11     0.11     0.11   0.00   0.05
Barrier              7    4      1    0.145    0.145    0.145   0.00   0.02
Barrier              7    5      1    0.176    0.176    0.176   0.00   0.02
Barrier              7    6      1    0.105    0.105    0.105   0.00   0.02
Barrier              7    7      1   0.0693   0.0693   0.0693   0.00   0.00
Barrier              7    *      8    0.176    0.109   0.0117   0.00   0.01

Barrier              8    0    750    0.137    0.019  0.00846   0.09   1.39
Barrier              8    1    750    0.136   0.0147  0.00692   0.07   3.77
Barrier              8    2    750    0.203   0.0167  0.00771   0.08   2.06
Barrier              8    3    750    0.206   0.0149  0.00692   0.07   4.67
Barrier              8    4    750    0.205   0.0152  0.00686   0.07   1.31
Barrier              8    5    750    0.206   0.0134  0.00675   0.07   1.00
Barrier              8    6    750    0.207   0.0145  0.00682   0.07   1.68
Barrier              8    7    750     0.21   0.0194  0.00649   0.09   0.87
Barrier              8    *   6000     0.21    0.016  0.00649   0.08   1.51

Bcast                2    0    750   0.0523  0.00671  0.00569   0.03   0.49
Bcast                2    1    750     39.8    0.311   0.0146   1.52  79.64
Bcast                2    2    750     39.7    0.169  0.00598   0.82  20.85
Bcast                2    3    750     39.7    0.239   0.0158   1.17  75.12
Bcast                2    4    750     5.54    0.648   0.0114   3.17  55.67
Bcast                2    5    750     6.33     1.27   0.0184   6.19  94.06
Bcast                2    6    750     39.9    0.775   0.0157   3.79  89.90
Bcast                2    7    750     41.6     2.15   0.0318  10.53  96.25
Bcast                2    *   6000     41.6    0.696  0.00569   3.40  65.59

Bcast                9    0      1   0.0374   0.0374   0.0374   0.00   0.00
Bcast                9    1      1   0.0627   0.0627   0.0627   0.00   0.02
Bcast                9    2      1   0.0702   0.0702   0.0702   0.00   0.01
Bcast                9    3      1   0.0948   0.0948   0.0948   0.00   0.04
Bcast                9    4      1   0.0552   0.0552   0.0552   0.00   0.01
Bcast                9    5      1   0.0858   0.0858   0.0858   0.00   0.01
Bcast                9    6      1   0.0782   0.0782   0.0782   0.00   0.01
Bcast                9    7      1    0.107    0.107    0.107   0.00   0.01
Bcast                9    *      8    0.107   0.0739   0.0374   0.00   0.01

Isend                5    0    750    0.153  0.00433  0.00253   0.02   0.32
Isend                5    1    750    0.332  0.00798  0.00271   0.04   2.05
Isend                5    2    750    0.276  0.00507  0.00263   0.02   0.63
Isend                5    3    750    0.313  0.00651  0.00273   0.03   2.05
Isend                5    4    750    0.269  0.00517  0.00263   0.03   0.44
Isend                5    5    750    0.275  0.00871   0.0027   0.04   0.65
Isend                5    6    750    0.272  0.00599  0.00265   0.03   0.69
Isend                5    *   5250    0.332  0.00625  0.00253   0.03   0.52

Isend               10    1    750    0.105  0.00457  0.00242   0.02   1.17
Isend               10    2    750   0.0222  0.00329  0.00236   0.02   0.41
Isend               10    3    750   0.0288  0.00399  0.00244   0.02   1.25
Isend               10    4    750   0.0544  0.00369  0.00242   0.02   0.32
Isend               10    5    750    0.118  0.00487  0.00243   0.02   0.36
Isend               10    6    750   0.0284   0.0036  0.00238   0.02   0.42
Isend               10    7    750    0.128   0.0041  0.00267   0.02   0.18
Isend               10    *   5250    0.128  0.00402  0.00236   0.02   0.33

Recv                 4    0    750    0.203   0.0136  0.00259   0.07   1.00
Recv                 4    1    750   0.0447  0.00193  0.00154   0.01   0.50
Recv                 4    2    750    0.083  0.00278  0.00155   0.01   0.34
Recv                 4    3    750   0.0481  0.00241  0.00153   0.01   0.76
Recv                 4    4    750     0.12  0.00346  0.00154   0.02   0.30
Recv                 4    5    750   0.0709  0.00249  0.00157   0.01   0.18
Recv                 4    6    750    0.122  0.00371  0.00158   0.02   0.43
Recv                 4    *   5250    0.203  0.00435  0.00153   0.02   0.36

Recv                11    1    750    0.173  0.00274  0.00169   0.01   0.70
Recv                11    2    750    0.183  0.00504  0.00174   0.02   0.62
Recv                11    3    750   0.0227  0.00239  0.00171   0.01   0.75
Recv                11    4    750     0.18  0.00411  0.00173   0.02   0.35
Recv                11    5    750   0.0236  0.00239  0.00174   0.01   0.18
Recv                11    6    750    0.181   0.0066   0.0018   0.03   0.77
Recv                11    7    750    0.275   0.0113  0.00253   0.06   0.50
Recv                11    *   5250    0.275  0.00494  0.00169   0.02   0.41

Reduce               1    0    750     40.8     1.27   0.0178   6.21  93.26
Reduce               1    1    750   0.0167  0.00695   0.0053   0.03   1.78
Reduce               1    2    750     2.56    0.567  0.00809   2.77  70.11
Reduce               1    3    750   0.0217  0.00803  0.00521   0.04   2.52
Reduce               1    4    750     40.5    0.438  0.00794   2.14  37.58
Reduce               1    5    750   0.0202  0.00641  0.00513   0.03   0.48
Reduce               1    6    750     1.35   0.0132   0.0067   0.06   1.53
Reduce               1    7    750   0.0539  0.00646  0.00537   0.03   0.29
Reduce               1    *   6000     40.8     0.29  0.00513   1.42  27.28
---------------------------------------------------------------------------
@--- Callsite Message Sent statistics (all, sent bytes) -------------------
---------------------------------------------------------------------------
Name              Site Rank   Count       Max      Mean       Min       Sum
Bcast                2    0     750         4         4         4      3000
Bcast                2    1     750         4         4         4      3000
Bcast                2    2     750         4         4         4      3000
Bcast                2    3     750         4         4         4      3000
Bcast                2    4     750         4         4         4      3000
Bcast                2    5     750         4         4         4      3000
Bcast                2    6     750         4         4         4      3000
Bcast                2    7     750         4         4         4      3000
Bcast                2    *    6000         4         4         4   2.4e+04

Bcast                9    0       1         4         4         4         4
Bcast                9    1       1         4         4         4         4
Bcast                9    2       1         4         4         4         4
Bcast                9    3       1         4         4         4         4
Bcast                9    4       1         4         4         4         4
Bcast                9    5       1         4         4         4         4
Bcast                2    6     750         4         4         4      3000
Bcast                2    7     750         4         4         4      3000
Bcast                2    *    6000         4         4         4   2.4e+04

Bcast                9    0       1         4         4         4         4
Bcast                9    1       1         4         4         4         4
Bcast                9    2       1         4         4         4         4
Bcast                9    3       1         4         4         4         4
Bcast                9    4       1         4         4         4         4
Bcast                9    5       1         4         4         4         4
Bcast                9    6       1         4         4         4         4
Bcast                9    7       1         4         4         4         4
Bcast                9    *       8         4         4         4        32

Isend                5    0     750       400       400       400     3e+05
Isend                5    1     750       400       400       400     3e+05
Isend                5    2     750       400       400       400     3e+05
Isend                5    3     750       400       400       400     3e+05
Isend                5    4     750       400       400       400     3e+05
Isend                5    5     750       400       400       400     3e+05
Isend                5    6     750       400       400       400     3e+05
Isend                5    *    5250       400       400       400   2.1e+06

Isend               10    1     750       400       400       400     3e+05
Isend               10    2     750       400       400       400     3e+05
Isend               10    3     750       400       400       400     3e+05
Isend               10    4     750       400       400       400     3e+05
Isend               10    5     750       400       400       400     3e+05
Isend               10    6     750       400       400       400     3e+05
Isend               10    7     750       400       400       400     3e+05
Isend               10    *    5250       400       400       400   2.1e+06

Reduce               1    0     750         4         4         4      3000
Reduce               1    1     750         4         4         4      3000
Reduce               1    2     750         4         4         4      3000
Reduce               1    3     750         4         4         4      3000
Reduce               1    4     750         4         4         4      3000
Reduce               1    5     750         4         4         4      3000
Reduce               1    6     750         4         4         4      3000
Reduce               1    7     750         4         4         4      3000
Reduce               1    *    6000         4         4         4   2.4e+04
---------------------------------------------------------------------------
@--- End of Report --------------------------------------------------------
---------------------------------------------------------------------------

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Last modified: November 11 2014 16:58:42.