Hi All,<br><br> With January 2000 default case data <br> <a href="http://www.mmm.ucar.edu/wrf_tmp/WRF_OnLineTutorial/SOURCE_DATA/JAN00.tar.gz" target="_blank">http://www.mmm.ucar.edu/wrf_tmp/WRF_OnLineTutorial/SOURCE_DATA/JAN00.tar.gz</a><br>
& WPS 3.0.1 & PGI 7.0-2 & RHEL4U4 (linux 2.6.9-42.ELsmp)<br><br> I found my ungrib.exe results show some differences to the mmm website <br> <a href="http://www.mmm.ucar.edu/wrf/OnLineTutorial/CASES/JAN00/ungrib.htm" target="_blank">http://www.mmm.ucar.edu/wrf/OnLineTutorial/CASES/JAN00/ungrib.htm</a><br>
<br> diff my.ungrib_data.log mmm.ungrib_data.log shows<br>------------------------------<div id=":15v" class="ii gt">-----------<br>264,265c264<br>< 250.0 X X X Begin rrpr<br>< X X <br>
---<br>> 250.0 X X X X X <br>489,493c488,492<br>
< Deleting file: ./PFILE:2000-01-24_12<br>< Deleting file: ./PFILE:2000-01-24_18<br>< Deleting file: ./PFILE:2000-01-25_00<br>< Deleting file: ./PFILE:2000-01-25_06<br>< Deleting file: ./PFILE:2000-01-25_12<br>
---<br>> Deleting file: ./PFILE:2000-01-24_12<br>> Deleting file: ./PFILE:2000-01-24_18<br>> Deleting file: ./PFILE:2000-01-25_00<br>> Deleting file: ./PFILE:2000-01-25_06<br>
> Deleting file: ./PFILE:2000-01-25_12<br>-----------------------------------------<br><br>And diff my.rd_int.log mmm.rd_int.log shows<br>-----------------------------------------<br>79c79<br>< DATA(1,1)=92.594933<br>
---<br>> DATA(1,1)=92.594925<br>98c98<br>< FIELD = SNOW<br>---<br>> FIELD = SNOW <br>367c367<br>< DATA(1,1)=97.757370<br>---<br>> DATA(1,1)=97.505646<br>847c847<br>< DATA(1,1)=74.951317<br>---<br>> DATA(1,1)=74.687019<br>
1327c1327<br>< DATA(1,1)=20.805838<br>---<br>> DATA(1,1)=20.724819<br>1407c1407<br>< DATA(1,1)=23.695192<br>---<br>> DATA(1,1)=23.602095<br>1487c1487<br>< DATA(1,1)=53.552029<br>---<br>> DATA(1,1)=53.453606<br>
1567c1567<br>< DATA(1,1)=74.859764<br>---<br>> DATA(1,1)=74.764519<br>1647c1647<br>< DATA(1,1)=70.810417<br>---<br>> DATA(1,1)=70.666641<br>2384a2385<br>-----------------------------------------<br><br>Could this be a float point precision problem or just my fault somewhere?<br>
<br>Thank you all.<br><br>--<br>Grus</div><div style="position: absolute; visibility: visible; height: 32px; width: 32px; display: none; top: 243px; left: 190px;"><img src="chrome://ookong/skin/images/tooltip_18px_18px.png"></div>