<html><head><meta http-equiv="Content-Type" content="text/html charset=utf-8"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class="">From a computational perspective, having blocks with that many zones is pretty impractical. FLASH’s performance is much better with far smaller sizes (such as 16x16). <div class=""><br class=""></div><div class="">I’d recommend picking nblock[xy] in the parameter file such that when you multiply it by whatever you pick for -n[xy]b (something like 16 or 32) yields 512. It should be fairly easy that writes a setup that maps from the initial condition to that pattern of blocks.</div><div class=""><br class=""><div><blockquote type="cite" class=""><div class="">On May 24, 2017, at 12:56 PM, Jenks, Malia T. <<a href="mailto:mjenks@ou.edu" class="">mjenks@ou.edu</a>> wrote:</div><br class="Apple-interchange-newline"><div class=""><div id="divtagdefaultwrapper" dir="ltr" style="font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; font-size: 12pt; font-family: Calibri, Arial, Helvetica, sans-serif;" class=""><div style="margin-top: 0px; margin-bottom: 0px;" class="">Tomek,</div><div style="margin-top: 0px; margin-bottom: 0px;" class=""><br class=""></div><div style="margin-top: 0px; margin-bottom: 0px;" class="">Where does the 2000 come from?</div><div style="margin-top: 0px; margin-bottom: 0px;" class="">Maxblocks is auto set to 1000.</div><div style="margin-top: 0px; margin-bottom: 0px;" class=""><br class=""></div><div style="margin-top: 0px; margin-bottom: 0px;" class="">The point is I am reading in an external grid that is 512x512 and I want the FLASH grid to match it exactly so that I can do a trivial map of the physical quantities.</div><div style="margin-top: 0px; margin-bottom: 0px;" class=""><br class=""></div><div style="margin-top: 0px; margin-bottom: 0px;" class="">I'm missing something.</div><div style="margin-top: 0px; margin-bottom: 0px;" class=""><br class=""></div><div style="margin-top: 0px; margin-bottom: 0px;" class="">Malia<br class=""></div></div><hr tabindex="-1" style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; display: inline-block; width: 628.171875px;" class=""><span style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; float: none; display: inline !important;" class=""></span><div id="divRplyFwdMsg" dir="ltr" style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px;" class=""><font face="Calibri, sans-serif" style="font-size: 11pt;" class=""><b class="">From:</b><span class="Apple-converted-space"> </span>Jenks, Malia T.<br class=""><b class="">Sent:</b><span class="Apple-converted-space"> </span>Wednesday, May 24, 2017 10:32:34 AM<br class=""><b class="">To:</b><span class="Apple-converted-space"> </span><a href="mailto:flash-users@flash.uchicago.edu" class="">flash-users@flash.uchicago.edu</a><br class=""><b class="">Subject:</b><span class="Apple-converted-space"> </span>Re: Question about grid size</font><div class=""> </div></div><div style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px;" class=""><div id="divtagdefaultwrapper" dir="ltr" style="font-size: 12pt; font-family: Calibri, Arial, Helvetica, sans-serif;" class=""><div style="margin-top: 0px; margin-bottom: 0px;" class="">Hmm, somehow Flash is statically allocating more than the Linux 2GB limit. I'm surprised that anything is statically allocated.<span class="Apple-converted-space"> </span><br class=""></div><div style="margin-top: 0px; margin-bottom: 0px;" class=""><br class=""></div><div style="margin-top: 0px; margin-bottom: 0px;" class="">I did a parallel compile but assuming (for debugging purposes) that I would just use 1 CPU. Thus, I set iProcs =1</div><div style="margin-top: 0px; margin-bottom: 0px;" class="">jProcs=1 and</div><div style="margin-top: 0px; margin-bottom: 0px;" class=""><br class=""></div><div style="margin-top: 0px; margin-bottom: 0px;" class="">setup -2d +cylindrical +usm -nxb=512 -nyb=512 -auto</div><div style="margin-top: 0px; margin-bottom: 0px;" class=""><br class=""></div><div style="margin-top: 0px; margin-bottom: 0px;" class="">Then at link time I get:</div><div style="margin-top: 0px; margin-bottom: 0px;" class=""><br class=""></div><p style="margin-top: 0px; margin-bottom: 0px;" class=""></p><div class="">Burn.o: In function `burn':<br class="">/home/mjenks/FLASH4.4/object/Burn.F90:107:(.text+0xe3): relocation truncated to fit: R_X86_64_PC32 against symbol `burn_data_mp_bn_useburn_' defined in COMMON section in Burn_data.o<br class="">/home/mjenks/FLASH4.4/object/Burn.F90:115:(.text+0x2ad): relocation truncated to fit: R_X86_64_PC32 against symbol `burn_data_mp_bn_useshockburn_' defined in COMMON section in Burn_data.o<br class="">/home/mjenks/FLASH4.4/object/Burn.F90:145:(.text+0x604): relocation truncated to fit: R_X86_64_PC32 against symbol `burn_data_mp_bn_useshockburn_' defined in COMMON section in Burn_data.o<br class="">/home/mjenks/FLASH4.4/object/Burn.F90:172:(.text+0x897): relocation truncated to fit: R_X86_64_PC32 against symbol `burn_data_mp_bn_nucleartempmin_' defined in COMMON section in Burn_data.o<br class="">/home/mjenks/FLASH4.4/object/Burn.F90:175:(.text+0x8bc): relocation truncated to fit: R_X86_64_PC32 against symbol `burn_data_mp_bn_nucleartempmax_' defined in COMMON section in Burn_data.o<br class="">/home/mjenks/FLASH4.4/object/Burn.F90:174:(.text+0x8dc): relocation truncated to fit: R_X86_64_PC32 against symbol `burn_data_mp_bn_useshockburn_' defined in COMMON section in Burn_data.o<br class="">/home/mjenks/FLASH4.4/object/Burn.F90:173:(.text+0x8f1): relocation truncated to fit: R_X86_64_PC32 against symbol `burn_data_mp_bn_nucleardensmin_' defined in COMMON section in Burn_data.o<br class="">/home/mjenks/FLASH4.4/object/Burn.F90:173:(.text+0x8f9): relocation truncated to fit: R_X86_64_PC32 against symbol `burn_data_mp_bn_nucleardensmax_' defined in COMMON section in Burn_data.o<br class="">/home/mjenks/FLASH4.4/object/Burn.F90:181:(.text+0x961): relocation truncated to fit: R_X86_64_PC32 against symbol `burn_data_mp_bn_nuclearni56max_' defined in COMMON section in Burn_data.o<br class="">Burn_computeDt.o: In function `burn_computedt':<br class="">/home/mjenks/FLASH4.4/object/Burn_computeDt.F90:108:(.text+0x16): relocation truncated to fit: R_X86_64_PC32 against symbol `burn_data_mp_bn_useburn_' defined in COMMON section in Burn_data.o<br class="">/home/mjenks/FLASH4.4/object/Burn_computeDt.F90:141:(.text+0x69): additional relocation overflows omitted from the output<br class="">make: *** [flash4] Error 1<br class=""><br class="">which means that I have > 2GB of static data see<span class="Apple-converted-space"> </span><span class=""><a href="https://software.intel.com/en-us/forums/intel-fortran-compiler-for-linux-and-mac-os-x/topic/268374" class="OWAAutoLink" id="LPlnk525102" previewremoved="true">https://software.intel.com/en-us/forums/intel-fortran-compiler-for-linux-and-mac-os-x/topic/268374</a><br class=""><br class="">which shouldn't be happening.<span class="Apple-converted-space"> </span><br class=""><br class="">Ideas?<br class=""><br class="">Malia<br class=""></span><div id="LPBorder_GT_14956434990920.870054988879386" style="margin-bottom: 20px; overflow: auto; width: 641px; text-indent: 0px;" class=""><table id="LPContainer_14956434990880.664723062318314" role="presentation" cellspacing="0" style="width: 576.890625px; background-color: rgb(255, 255, 255); position: relative; overflow: auto; padding-top: 20px; padding-bottom: 20px; margin-top: 20px; border-top-width: 1px; border-top-style: dotted; border-top-color: rgb(200, 200, 200); border-bottom-width: 1px; border-bottom-style: dotted; border-bottom-color: rgb(200, 200, 200);" class=""><tbody class=""><tr valign="top" style="border-spacing: 0px;" class=""><td id="TextCell_14956434990890.30660771925562713" colspan="2" style="vertical-align: top; position: relative; padding: 0px; display: table-cell;" class=""><div id="LPRemovePreviewContainer_14956434990890.3412652029947264" class=""></div><div id="LPTitle_14956434990890.013272616547162386" style="top: 0px; color: rgb(0, 120, 215); font-weight: 400; font-size: 21px; font-family: wf_segoe-ui_light, 'Segoe UI Light', 'Segoe WP Light', 'Segoe UI', 'Segoe WP', Tahoma, Arial, sans-serif; line-height: 21px;" class=""><a id="LPUrlAnchor_14956434990900.6708587305907193" href="https://software.intel.com/en-us/forums/intel-fortran-compiler-for-linux-and-mac-os-x/topic/268374" target="_blank" style="text-decoration: none;" class="">relocation truncated to fit: R_X86_64_PC32 - Intel® Software</a></div><div id="LPMetadata_14956434990910.920320941180578" style="margin: 10px 0px 16px; color: rgb(102, 102, 102); font-weight: 400; font-family: wf_segoe-ui_normal, 'Segoe UI', 'Segoe WP', Tahoma, Arial, sans-serif; font-size: 14px; line-height: 14px;" class=""><a href="http://software.intel.com" class="">software.intel.com</a></div><div id="LPDescription_14956434990920.15876753967591728" style="display: block; color: rgb(102, 102, 102); font-weight: 400; font-family: wf_segoe-ui_normal, 'Segoe UI', 'Segoe WP', Tahoma, Arial, sans-serif; font-size: 14px; line-height: 20px; max-height: 100px; overflow: hidden;" class="">Hi, I'm trying to compile a big code that so far has been running fine.Now, we have surpassed the 2GB in statically allocated data limit. I knew that would bring us ...</div></td></tr></tbody></table></div><br class=""></div><br class=""><p style="margin-top: 0px; margin-bottom: 0px;" class=""></p></div><hr tabindex="-1" style="display: inline-block; width: 628.171875px;" class=""><div id="divRplyFwdMsg" dir="ltr" class=""><font face="Calibri, sans-serif" style="font-size: 11pt;" class=""><b class="">From:</b><span class="Apple-converted-space"> </span>Jenks, Malia T.<br class=""><b class="">Sent:</b><span class="Apple-converted-space"> </span>Tuesday, May 23, 2017 4:29:17 PM<br class=""><b class="">To:</b><span class="Apple-converted-space"> </span><a href="mailto:flash-users@flash.uchicago.edu" class="">flash-users@flash.uchicago.edu</a><br class=""><b class="">Subject:</b><span class="Apple-converted-space"> </span>Question about grid size</font><div class=""> </div></div><div class=""><div id="divtagdefaultwrapper" dir="ltr" style="font-size: 12pt; font-family: Calibri, Arial, Helvetica, sans-serif;" class=""><div style="margin-top: 0px; margin-bottom: 0px;" class="">I tried to increase the number of cells in my 2d model to 512 by 512. It will not compile at this size and I get an error about static memory. Is there a way I can solve this?</div><div style="margin-top: 0px; margin-bottom: 0px;" class=""><br class=""></div><div style="margin-top: 0px; margin-bottom: 0px;" class="">Malia Jenks</div></div></div></div></div></blockquote></div><br class=""></div></body></html>