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Hi, <br>
<br>
Couldn't he just use the compiler option " -mcmodel=large" ? <br>
<br>
Seyit<br>
<br>
<br>
<br>
<br>
<div class="moz-cite-prefix">On 24/05/17 19:20, Tomasz Plewa wrote:<br>
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<tt>Right, the default for maxblocks could be 1000. Nevertheless,
this is a large number especially taking into account tat
nxb=nyb=8 is the default. and you are using the USM solver.<br>
<br>
There are two ways around it.<br>
<br>
Set maxblocks to much smaller number. This effectively robs you
of adaptivity, but you cannot really run adaptive simulations
with large blocks.<br>
<br>
Alternatively, if you don't need AMR at all, decompose you
domain into a modest number of medium-sized blocks, e.g.,<br>
<br>
-maxblocks=64 -nxb=64 -nyb=64.<br>
<br>
Tomek<br>
--</tt><br>
<div class="moz-cite-prefix">On 05/24/17 12:56, Jenks, Malia T.
wrote:<br>
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<p>Tomek,</p>
<p><br>
</p>
<p>Where does the 2000 come from?</p>
<p>Maxblocks is auto set to 1000.</p>
<p><br>
</p>
<p>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.</p>
<p><br>
</p>
<p>I'm missing something.</p>
<p><br>
</p>
<p>Malia<br>
</p>
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<div id="divRplyFwdMsg" dir="ltr"><font style="font-size:11pt"
color="#000000" face="Calibri, sans-serif"><b>From:</b>
Jenks, Malia T.<br>
<b>Sent:</b> Wednesday, May 24, 2017 10:32:34 AM<br>
<b>To:</b> <a moz-do-not-send="true"
class="moz-txt-link-abbreviated"
href="mailto:flash-users@flash.uchicago.edu">flash-users@flash.uchicago.edu</a><br>
<b>Subject:</b> Re: Question about grid size</font>
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<p>Hmm, somehow Flash is statically allocating more than the
Linux 2GB limit. I'm surprised that anything is statically
allocated. <br>
</p>
<p><br>
</p>
<p>I did a parallel compile but assuming (for debugging
purposes) that I would just use 1 CPU. Thus, I set iProcs
=1</p>
<p>jProcs=1 and</p>
<p><br>
</p>
<p>setup -2d +cylindrical +usm -nxb=512 -nyb=512 -auto</p>
<p><br>
</p>
<p>Then at link time I get:</p>
<p><br>
</p>
<div>Burn.o: In function `burn':<br>
/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>
/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>
/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>
/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>
/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>
/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>
/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>
/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>
/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>
Burn_computeDt.o: In function `burn_computedt':<br>
/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>
/home/mjenks/FLASH4.4/object/Burn_computeDt.F90:141:(.text+0x69):
additional relocation overflows omitted from the output<br>
make: *** [flash4] Error 1<br>
<br>
which means that I have > 2GB of static data see <span><a
moz-do-not-send="true"
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>
<br>
which shouldn't be happening. <br>
<br>
Ideas?<br>
<br>
Malia<br>
</span>
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style="text-decoration: none;"
href="https://software.intel.com/en-us/forums/intel-fortran-compiler-for-linux-and-mac-os-x/topic/268374"
target="_blank">relocation truncated to fit:
R_X86_64_PC32 - Intel® Software</a></div>
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style="margin: 10px 0px 16px; color: rgb(102,
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<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
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14px; line-height: 20px; max-height: 100px;
overflow: hidden;"> 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>
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<div id="divRplyFwdMsg" dir="ltr"><font style="font-size:11pt"
color="#000000" face="Calibri, sans-serif"><b>From:</b>
Jenks, Malia T.<br>
<b>Sent:</b> Tuesday, May 23, 2017 4:29:17 PM<br>
<b>To:</b> <a moz-do-not-send="true"
class="moz-txt-link-abbreviated"
href="mailto:flash-users@flash.uchicago.edu">flash-users@flash.uchicago.edu</a><br>
<b>Subject:</b> Question about grid size</font>
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<p>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?</p>
<p><br>
</p>
<p>Malia Jenks<br>
</p>
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<pre class="moz-signature" cols="72">--
Dr. Seyit Hocuk
Post-doctoral researcher
Center for Astrochemical Studies (CAS)
Max-Planck-Institute for Extraterrestrial physics (MPE)
Giessenbachstrasse 1, 85748 Garching bei Munchen
Phone: +49-8930000-3012 | Fax: +49-8930000-3569
Web : <a class="moz-txt-link-abbreviated" href="http://www.mpe.mpg.de/~seyit">www.mpe.mpg.de/~seyit</a></pre>
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