<div dir="ltr"><div>Hi,<br><br>What compiler and platform are you running on? Also what MPI implementation are you using?<br><br></div><div>Thanks<br></div>Katherine<br></div><div class="gmail_extra"><br><br><div class="gmail_quote">
On Tue, Sep 2, 2014 at 4:19 PM, <span dir="ltr"><<a href="mailto:nek5000-users@lists.mcs.anl.gov" target="_blank">nek5000-users@lists.mcs.anl.gov</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
Hello all,<br>
<br>
I'm interested in comparing the wall clock time for a same run with different number of CPU's. However, the time output seems to always give 0. I have tried using the mpi_wtime and dnekclock functions in the userchk subroutine and it has also been giving me 0 for each processor. I have included the end of my logfile in this email. The last 2 values of the first output line for a time step should give the total wall clock time and step wall clock time, but are both showing 0. At the end of the run, total elapsed time should be shown, but once again the value output is zero.<br>
<br>
Has anyone figured out a method permitting to obtain the total wall clock time?<br>
<br>
Thank you,<br>
<br>
Jérémie<br>
<br>
----------------------- END OF LOGFILE ------------------------------<u></u>------------------------------<u></u>----------------<br>
<br>
<br>
Step 20, t= 4.8774474E-02, DT= 2.4387237E-03, C= 0.501 0.0000E+00 0.0000E+00<br>
Solving for fluid<br>
20 1 4.7138E-02 1.7111E-07 2.7549E+05 15 alph1x<br>
20 halpha 15 -1.1778E-03 1.2672E-01 6.1694E-02 1.1588E-01 5.4007E-02 5.1022E-02 3.1403E-02 2.4425E-02 1.0726E-02 6.0344E-03<br>
<br>
20 Hmholtz VELX: 3 2.6011E-13 1.7111E-07 1.0000E-12<br>
20 2 3.4534E-02 2.5050E-07 1.3786E+05 15 alph1x<br>
20 halpha 15 1.8538E-02 1.0186E-01 4.5783E-02 4.5495E-02 4.2007E-02 4.7957E-02 3.7328E-02 2.8192E-02 2.2477E-02 9.2507E-03<br>
<br>
20 Hmholtz VELY: 3 3.4751E-13 2.5050E-07 1.0000E-12<br>
20 15 alpha: -2.7079E-06 -1.8713E-04 3.2842E-03 3.7249E-03 2.1355E-03 1.4731E-03 1.7188E-03 3.0469E-03 1.6907E-03 1.1608E-03<br>
20 15 4.0387E-03 7.8105E-07 5.1708E+03 alph12<br>
20 U-PRES gmres: 13 8.2682E-13 1.0000E-12 1.0390E-09 0.0000E+00 0.0000E+00<br>
20 DNORM, DIVEX 8.2682338981824994E-013 8.2682352659334355E-013<br>
20 4.8774E-02 0.0000E+00 Fluid done<br>
call outfld: ifpsco: F<br>
<br>
20 4.8774E-02 Write checkpoint:<br>
0 20 OPEN: naca24150.f00001<br>
<br>
20 4.8774E-02 done :: Write checkpoint<br>
file size = 4.4 MB<br>
avg data-throughput = InfMB/s<br>
io-nodes = 1<br>
<br>
<br>
end of time-step loop<br>
<br>
runtime statistics:<br>
total time 9.9999999999999995E-008<br>
inv3 time 621 0.0000000000000000 0.0000000000000000<br>
invc time 80 0.0000000000000000 0.0000000000000000<br>
mltd time 1282 0.0000000000000000 0.0000000000000000<br>
cdtp time 1282 0.0000000000000000 0.0000000000000000<br>
eslv time 20 0.0000000000000000 0.0000000000000000<br>
pres time 20 0.0000000000000000 0.0000000000000000<br>
crsl time 565 0.0000000000000000 0.0000000000000000<br>
crsl min 0.0000000000000000<br>
crsl max 0.0000000000000000<br>
crsl avg 0.0000000000000000<br>
hmhz time 8 0.0000000000000000 0.0000000000000000<br>
spro time 21 0.0000000000000000 0.0000000000000000<br>
usbc time 21 0.0000000000000000 0.0000000000000000<br>
usbc min 0.0000000000000000<br>
usbc max 0.0000000000000000<br>
usb avg 0.0000000000000000<br>
axhm time 458 0.0000000000000000 0.0000000000000000<br>
advc time 40 0.0000000000000000 0.0000000000000000<br>
vdss time 622 0.0000000000000000 0.0000000000000000<br>
vdss min 0.0000000000000000<br>
vdss max 0.0000000000000000<br>
vdss avg 0.0000000000000000<br>
dsum time 2139 0.0000000000000000 0.0000000000000000<br>
dsum min 0.0000000000000000<br>
dsum max 0.0000000000000000<br>
dsum avg 0.0000000000000000<br>
dadd time 0 0.0000000000000000 0.0000000000000000<br>
ddsl time 565 0.0000000000000000 0.0000000000000000<br>
solv time 565 0.0000000000000000 0.0000000000000000<br>
prep time 20 0.0000000000000000 0.0000000000000000<br>
<br>
# nid tusbc tdadd tcrsl tvdss tdsum tgop qqq F<br>
0 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 qqq<br>
1 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 qqq<br>
2 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 qqq<br>
3 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 qqq<br>
4 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 qqq<br>
5 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 qqq<br>
<br>
call exitt: dying ...<br>
<br>
backtrace(): obtained 5 stack frames.<br>
./nek5000(print_stack_+0x1a) [0x4fa15a]<br>
./nek5000(exitt_+0x1a6) [0x5e6b56]<br>
./nek5000(main+0x39) [0x419489]<br>
/lib/x86_64-linux-gnu/libc.so.<u></u>6(__libc_start_main+0xed) [0x2b7993c6076d]<br>
./nek5000() [0x4194b9]<br>
<br>
total elapsed time : 0.00000E+00 sec<br>
total solver time incl. I/O : 0.00000E+00 sec<br>
time/timestep : 0.00000E+00 sec<br>
CPU seconds/timestep/gridpt : 0.00000E+00 sec<br>
<br>
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</blockquote></div><br></div>