<html><head><meta http-equiv="Content-Type" content="text/html charset=us-ascii"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;"><br><div><div>On 30 Sep 2016, at 16:04, dumsani <<a href="mailto:g14n8326@campus.ru.ac.za">g14n8326@campus.ru.ac.za</a>> wrote:</div><br class="Apple-interchange-newline"><blockquote type="cite">Hi,<br><br>When running long simulations with checkpointing, it might sometimes be <br>useful to change certain parameters, especially I/O (e.g. the frequency <br>of outputting a certain variable). Is this possible in <br>Cactus/Simfactory? I notice that upon recovery (in the next re-start) <br>Simfactory reads the parameters from a checkpoint file, not from any of <br>the parfiles dumped within the job directory.<br><br>Any suggestions/responses will be highly appreciated.<br></blockquote><div><br></div><div>Hi Dumsani,</div><div><br></div><div>When you run the simulation again, you give it a new parameter file. It is this new parameter file which is checked for steered parameters; Cactus doesn't look at the output from a previous run. Many parameters can be steered on recovery in this manner, by changing them in the parameter file. Be careful when steering the out_every parameters; you almost certainly want out_criterion = divisor, not the default of "iteration". "iteration" outputs if the current iteration number is N greater than the last output iteration. "divisor" outputs if the current iteration is divisible by N.</div></div><br><div apple-content-edited="true">
<div style="color: rgb(0, 0, 0); letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px; word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;"><div style="color: rgb(0, 0, 0); letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px; word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;"><div style="color: rgb(0, 0, 0); letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px; word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;"><div style="color: rgb(0, 0, 0); letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px; word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;"><div>-- </div><div>Ian Hinder</div><div><a href="http://members.aei.mpg.de/ianhin">http://members.aei.mpg.de/ianhin</a></div></div></div></div></div>
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