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Hi Mollie,<br>
<br>
>From what little I understand of memory usage in ADMB, it is a little
more complicated than simply converting the input numbers into
megabytes to get total memory usage. But, the numbers for arrmblsize,
GRADSTACK, and CMPDIF are entered as bytes, so dividing by 1024^2 would
give you megabytes. I would recommend reading Mark Maunder's memory
usage guide on the ADMB project website ( <a
href="http://admb-project.org/community/tutorials-and-examples/memory-management">http://admb-project.org/community/tutorials-and-examples/memory-management</a>
) and you want to glance at some work that Ian Taylor and I did on
memory usage and run speed ( <a
href="http://admb-project.org/community/benchmarks/ADMBmemoryTest.pdf/view">http://admb-project.org/community/benchmarks/ADMBmemoryTest.pdf/view</a>
). You could run some tests similar to those run by Ian Taylor and I
(see Rcode on ADMB website) to determine total memory usage.<br>
<br>
Good luck,<br>
Allan<br>
<br>
Mollie Brooks wrote:
<blockquote cite="mid:B0F932FF-08D9-413C-BB2D-9A95974D28CB@ufl.edu"
type="cite">Hi all,
<div>I'm not very good at understanding hardware. </div>
<div>I'm running ADMB on a cluster and have to specify how much
memory to allocate.</div>
<div>If my ADMB code has the lines</div>
<div>
<div><span class="Apple-tab-span" style="white-space: pre;"> </span>arrmblsize
= 800000000000;</div>
<div><span class="Apple-tab-span" style="white-space: pre;"> </span>gradient_structure::set_GRADSTACK_BUFFER_SIZE(1.e7);</div>
<div><span class="Apple-tab-span" style="white-space: pre;"> </span>gradient_structure::set_CMPDIF_BUFFER_SIZE(1.e7);</div>
<div><span class="Apple-tab-span" style="white-space: pre;"> </span>gradient_structure::set_MAX_NVAR_OFFSET(5000);</div>
<div><span class="Apple-tab-span" style="white-space: pre;"> </span>gradient_structure::set_NUM_DEPENDENT_VARIABLES(5000);</div>
<div><br>
</div>
<div>How do I translate this into Megabytes?</div>
<div>thanks,</div>
<div>Mollie</div>
<div><br>
</div>
<div apple-content-edited="true">
<div style="">
<div><span class="Apple-style-span" style="font-size: 12px;">
<div>Mollie Brooks</div>
<div>Ph.D. Candidate</div>
<div>NSF IGERT Fellow</div>
<div>Biology Department</div>
<div>University of Florida</div>
<div><a moz-do-not-send="true" href="mailto:mbrooks@ufl.edu">mbrooks@ufl.edu</a></div>
<div><a moz-do-not-send="true"
href="http://www.zoology.ufl.edu/mbrooks">www.zoology.ufl.edu/mbrooks</a></div>
<div><br>
</div>
</span></div>
</div>
<br class="Apple-interchange-newline">
</div>
<br>
</div>
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