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<div>Hi all,</div>
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<div>I have installed aspect's latest version and I have been running the convection-box cookbook to satisfaction. </div>
<div>Since i wish to run case 1c of Blankenbach et al 1989, I have set g= 10^16 so that Ra=10^6.</div>
<div>I have set the resolution to a constant 512x512 (set Initial global refinement = 9). </div>
<div>So far so good, until I looked at the timings after a substantial number of time steps:</div>
<div>Why does the temperature assembly system take so much time ? (10 times more than Stokes assembly, 20times more than its solve )</div>
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<div>Thanks, </div>
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<div>Cedric.</div>
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<font class="Apple-style-span" face="Courier"> 784 +---------------------------------------------+------------+------------+<br>
785 | Total wallclock time elapsed since start | 3.25e+05s | |<br>
786 | | | |<br>
787 | Section | no. calls | wall time | % of total |<br>
788 +---------------------------------+-----------+------------+------------+<br>
789 | Assemble Stokes system | 11101 | 2e+04s | 6.1% |<br>
790 | Assemble temperature system | 11101 | 2.36e+05s | 73% |<br>
791 | Build Stokes preconditioner | 1 | 15.2s | 0.0047% |<br>
792 | Build temperature preconditioner| 11101 | 3.65e+03s | 1.1% |<br>
793 | Solve Stokes system | 11101 | 4.11e+04s | 13% |<br>
794 | Solve temperature system | 11101 | 1.06e+04s | 3.3% |<br>
795 | Initialization | 2 | 0.917s | 0.00028% |<br>
796 | Postprocessing | 11101 | 8.65e+03s | 2.7% |<br>
797 | Setup dof systems | 1 | 11.7s | 0.0036% |<br>
798 +---------------------------------+-----------+------------+------------+</font>
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