Changes between Version 44 and Version 45 of Public/User_Guide/OmpSs-2

Timestamp:

Jun 14, 2019, 5:43:58 PM (5 years ago)

Author:

Pedro Martinez-Ferror

Comment:

—

Public/User_Guide/OmpSs-2

@@ -300 +300 @@
 `NANOS6=graph taskset -c 12-23 ./03.multisaxpy_task 196608 8192 1`
 
-This command can take some time.  Once it has finished it should have created a script with the name ''graph-XXXXX-YYYYYYYYY-script.sh'' and a directory ''graph-XXXXX-YYYYYYYYY-components''.  Execute the script by typing:
+This command can take some time.  Once it has finished it should have created a script with the name ''graph-XXXXX-YYYYYYYYY-script.sh'' and a directory ''graph-XXXXX-YYYYYYYYY-components''.  Execute the script by typing (note that it requires the tool `dot`):
 
 `bash graph-XXXXX-YYYYYYYYY-script.sh`
@@ -309 +309 @@
 
 which illustrates 24 tasks executed in parallel using 12 threads.
+
+
+== Obtaining statistics ==
+
+The visual execution of tasks can be further complemented with statistics.  Run the following command:
+
+`NANOS6=stats taskset -c 12-23 ./03.multisaxpy_task 196608 8192 1`
+
+will give you the information below:
+{{{
+$ NANOS6=stats taskset -c 12-23 ./03.multisaxpy_task 196608 8192 1
+size: 196608, bs: 8192, iterations: 1, time: 0.000241, performance: 0.815801
+STATS   Total CPUs      12
+STATS   Total time      2.42573e+07     ns
+STATS   Total threads   12
+STATS   Mean threads per CPU    1
+STATS   Mean tasks per thread   2.08333
+
+STATS   Mean thread lifetime    3.65355e+09     %
+STATS   Mean thread running time        100     %
+STATS   Mean effective parallelism      0.123268
+
+STATS   All Tasks instances     25
+STATS   All Tasks mean instantiation time       1445    ns      0.885064        %
+STATS   All Tasks mean pending time     0       ns      0       %
+STATS   All Tasks mean ready time       32446   ns      19.8732 %
+STATS   All Tasks mean execution time   119605  ns      73.2582 %
+STATS   All Tasks mean blocked time     3702    ns      2.26748 %
+STATS   All Tasks mean zombie time      6067    ns      3.71604 %
+STATS   All Tasks mean lifetime 163265  ns
+
+STATS   03.multisaxpy_task.cpp:3:13 instances   24
+STATS   03.multisaxpy_task.cpp:3:13 mean instantiation time     1251    ns      1.75051 %
+STATS   03.multisaxpy_task.cpp:3:13 mean pending time   0       ns      0       %
+STATS   03.multisaxpy_task.cpp:3:13 mean ready time     32944   ns      46.0981 %
+STATS   03.multisaxpy_task.cpp:3:13 mean execution time 31079   ns      43.4884 %
+STATS   03.multisaxpy_task.cpp:3:13 mean blocked time   0       ns      0       %
+STATS   03.multisaxpy_task.cpp:3:13 mean zombie time    6191    ns      8.66298 %
+STATS   03.multisaxpy_task.cpp:3:13 mean lifetime       71465   ns
+
+STATS   main instances  1
+STATS   main mean instantiation time    6089    ns      0.2573  %
+STATS   main mean pending time  0       ns      0       %
+STATS   main mean ready time    20505   ns      0.866471        %
+STATS   main mean execution time        2244241 ns      94.8339 %
+STATS   main mean blocked time  92553   ns      3.91097 %
+STATS   main mean zombie time   3108    ns      0.131333        %
+STATS   main mean lifetime      2366496 ns
+
+STATS   Phase 1 03.multisaxpy_task.cpp:3:13 instances   24
+STATS   Phase 1 03.multisaxpy_task.cpp:3:13 mean instantiation time     1251    ns      1.75051 %
+STATS   Phase 1 03.multisaxpy_task.cpp:3:13 mean pending time   0       ns      0       %
+STATS   Phase 1 03.multisaxpy_task.cpp:3:13 mean ready time     32944   ns      46.0981 %
+STATS   Phase 1 03.multisaxpy_task.cpp:3:13 mean execution time 31079   ns      43.4884 %
+STATS   Phase 1 03.multisaxpy_task.cpp:3:13 mean blocked time   0       ns      0       %
+STATS   Phase 1 03.multisaxpy_task.cpp:3:13 mean zombie time    6191    ns      8.66298 %
+STATS   Phase 1 03.multisaxpy_task.cpp:3:13 mean lifetime       71465   ns
+
+STATS   Phase 1 instances       24
+STATS   Phase 1 mean instantiation time 1251    ns      1.75051 %
+STATS   Phase 1 mean pending time       0       ns      0       %
+STATS   Phase 1 mean ready time 32944   ns      46.0981 %
+STATS   Phase 1 mean execution time     31079   ns      43.4884 %
+STATS   Phase 1 mean blocked time       0       ns      0       %
+STATS   Phase 1 mean zombie time        6191    ns      8.66298 %
+STATS   Phase 1 mean lifetime   71465   ns
+STATS   Phase 1 effective parallelism   0.165278
+}}}
+
+Additionally, you can get information related to hardware counters (PAPI). For this, first load the PAPI module:
+
+`module load PAPI/5.6.0`
+
+and execute:
+
+`NANOS6=stats-papi taskset -c 12-23 ./03.multisaxpy_task 196608 8192 1`
+
+to get the following information:
+{{{
+$ NANOS6=stats-papi taskset -c 12-23 ./03.multisaxpy_task 196608 8192 1
+size: 196608, bs: 8192, iterations: 1, time: 0.000236, performance: 0.833085
+STATS   Total CPUs      12
+STATS   Total time      3.06985e+07     ns
+STATS   Total threads   12
+STATS   Mean threads per CPU    1
+STATS   Mean tasks per thread   2.08333
+
+STATS   Mean thread lifetime    2.88807e+09     %
+STATS   Mean thread running time        100     %
+STATS   Mean effective parallelism      0.13271
+
+STATS   All Tasks instances     25
+STATS   All Tasks mean instantiation time       2708    ns      1.52238 %
+STATS   All Tasks mean pending time     0       ns      0       %
+STATS   All Tasks mean ready time       9032    ns      5.07761 %
+STATS   All Tasks mean execution time   162959  ns      91.6123 %
+STATS   All Tasks mean blocked time     1105    ns      0.621209        %
+STATS   All Tasks mean zombie time      2075    ns      1.16652 %
+STATS   All Tasks mean lifetime 177879  ns
+STATS   All Tasks Real frequency        0.658047        GHz
+STATS   All Tasks Virtual frequency     0.782649        GHz
+STATS   All Tasks IPC   1.66625
+STATS   All Tasks L2 data cache miss ratio      3.203
+STATS   All Tasks Real nsecs    3804026 nsecs
+STATS   All Tasks Virtual nsecs 3198406 nsecs
+STATS   All Tasks Instructions  4171011 instructions
+STATS   All Tasks Total cycles  2503229
+STATS   All Tasks Instr completed       4171011
+STATS   All Tasks L2D cache accesses    16754
+STATS   All Tasks L2D cache misses      53663
+STATS   All Tasks Reference cycles      2054784
+
+STATS   03.multisaxpy_task.cpp:3:13 instances   24
+STATS   03.multisaxpy_task.cpp:3:13 mean instantiation time     2498    ns      4.60435 %
+STATS   03.multisaxpy_task.cpp:3:13 mean pending time   0       ns      0       %
+STATS   03.multisaxpy_task.cpp:3:13 mean ready time     8237    ns      15.1826 %
+STATS   03.multisaxpy_task.cpp:3:13 mean execution time 41452   ns      76.405  %
+STATS   03.multisaxpy_task.cpp:3:13 mean blocked time   0       ns      0       %
+STATS   03.multisaxpy_task.cpp:3:13 mean zombie time    2066    ns      3.80808 %
+STATS   03.multisaxpy_task.cpp:3:13 mean lifetime       54253   ns
+STATS   03.multisaxpy_task.cpp:3:13 Real frequency      3.16748 GHz
+STATS   03.multisaxpy_task.cpp:3:13 Virtual frequency   3.18873 GHz
+STATS   03.multisaxpy_task.cpp:3:13 IPC 1.72954
+STATS   03.multisaxpy_task.cpp:3:13 L2 data cache miss ratio    3.96831
+STATS   03.multisaxpy_task.cpp:3:13 Real nsecs  755566  nsecs
+STATS   03.multisaxpy_task.cpp:3:13 Virtual nsecs       750532  nsecs
+STATS   03.multisaxpy_task.cpp:3:13 Instructions        4139211 instructions
+STATS   03.multisaxpy_task.cpp:3:13 Total cycles        2393243
+STATS   03.multisaxpy_task.cpp:3:13 Instr completed     4139211
+STATS   03.multisaxpy_task.cpp:3:13 L2D cache accesses  13316
+STATS   03.multisaxpy_task.cpp:3:13 L2D cache misses    52842
+STATS   03.multisaxpy_task.cpp:3:13 Reference cycles    1964416
+
+STATS   main instances  1
+STATS   main mean instantiation time    7755    ns      0.246588        %
+STATS   main mean pending time  0       ns      0       %
+STATS   main mean ready time    28131   ns      0.894488        %
+STATS   main mean execution time        3079121 ns      97.9076 %
+STATS   main mean blocked time  27636   ns      0.878749        %
+STATS   main mean zombie time   2284    ns      0.0726249       %
+STATS   main mean lifetime      3144927 ns
+STATS   main Real frequency     0.0360792       GHz
+STATS   main Virtual frequency  0.0449312       GHz
+STATS   main IPC        0.289128
+STATS   main L2 data cache miss ratio   0.238802
+STATS   main Real nsecs 3048460 nsecs
+STATS   main Virtual nsecs      2447874 nsecs
+STATS   main Instructions       31800   instructions
+STATS   main Total cycles       109986
+STATS   main Instr completed    31800
+STATS   main L2D cache accesses 3438
+STATS   main L2D cache misses   821
+STATS   main Reference cycles   90368
+
+STATS   Phase 1 03.multisaxpy_task.cpp:3:13 instances   24
+STATS   Phase 1 03.multisaxpy_task.cpp:3:13 mean instantiation time     2498    ns      4.60435 %
+STATS   Phase 1 03.multisaxpy_task.cpp:3:13 mean pending time   0       ns      0       %
+STATS   Phase 1 03.multisaxpy_task.cpp:3:13 mean ready time     8237    ns      15.1826 %
+STATS   Phase 1 03.multisaxpy_task.cpp:3:13 mean execution time 41452   ns      76.405  %
+STATS   Phase 1 03.multisaxpy_task.cpp:3:13 mean blocked time   0       ns      0       %
+STATS   Phase 1 03.multisaxpy_task.cpp:3:13 mean zombie time    2066    ns      3.80808 %
+STATS   Phase 1 03.multisaxpy_task.cpp:3:13 mean lifetime       54253   ns
+STATS   Phase 1 03.multisaxpy_task.cpp:3:13 Real frequency      3.16748 GHz
+STATS   Phase 1 03.multisaxpy_task.cpp:3:13 Virtual frequency   3.18873 GHz
+STATS   Phase 1 03.multisaxpy_task.cpp:3:13 IPC 1.72954
+STATS   Phase 1 03.multisaxpy_task.cpp:3:13 L2 data cache miss ratio    3.96831
+STATS   Phase 1 03.multisaxpy_task.cpp:3:13 Real nsecs  755566  nsecs
+STATS   Phase 1 03.multisaxpy_task.cpp:3:13 Virtual nsecs       750532  nsecs
+STATS   Phase 1 03.multisaxpy_task.cpp:3:13 Instructions        4139211 instructions
+STATS   Phase 1 03.multisaxpy_task.cpp:3:13 Total cycles        2393243
+STATS   Phase 1 03.multisaxpy_task.cpp:3:13 Instr completed     4139211
+STATS   Phase 1 03.multisaxpy_task.cpp:3:13 L2D cache accesses  13316
+STATS   Phase 1 03.multisaxpy_task.cpp:3:13 L2D cache misses    52842
+STATS   Phase 1 03.multisaxpy_task.cpp:3:13 Reference cycles    1964416
+
+STATS   Phase 1 instances       24
+STATS   Phase 1 mean instantiation time 2498    ns      4.60435 %
+STATS   Phase 1 mean pending time       0       ns      0       %
+STATS   Phase 1 mean ready time 8237    ns      15.1826 %
+STATS   Phase 1 mean execution time     41452   ns      76.405  %
+STATS   Phase 1 mean blocked time       0       ns      0       %
+STATS   Phase 1 mean zombie time        2066    ns      3.80808 %
+STATS   Phase 1 mean lifetime   54253   ns
+STATS   Phase 1 Real frequency  3.16748 GHz
+STATS   Phase 1 Virtual frequency       3.18873 GHz
+STATS   Phase 1 IPC     1.72954
+STATS   Phase 1 L2 data cache miss ratio        3.96831
+STATS   Phase 1 Real nsecs      755566  nsecs
+STATS   Phase 1 Virtual nsecs   750532  nsecs
+STATS   Phase 1 Instructions    4139211 instructions
+STATS   Phase 1 Total cycles    2393243
+STATS   Phase 1 Instr completed 4139211
+STATS   Phase 1 L2D cache accesses      13316
+STATS   Phase 1 L2D cache misses        52842
+STATS   Phase 1 Reference cycles        1964416
+STATS   Phase 1 effective parallelism   0.217033
+}}}
+
+== Tracing with Extrae ==
+
+
+