<div dir="ltr"><div dir="auto">Hi,</div><div dir="auto"><br></div><div>Thank you for the detailed report. I was able to reproduce this locally on yt 3.3.5. Thankfully, it looks like we've already fixed this in the development branch. I'm not sure when that happened, I'd probably need to bisect to find the exact change - I know there were a number of improvements to rays that happened to support Trident.</div><div><br></div><div>To get the fix right now, you can switch to running yt from the development branch. If you installed yt using the install script, simply rerun it after editing to set INST_YT_SOURCE=1. If you installed with conda, you can get nightly conda builds as described in the docs here:</div><div><br></div><div><a href="http://yt-project.org/docs/dev/installing.html#nightly-conda-builds">http://yt-project.org/docs/dev/installing.html#nightly-conda-builds</a><br></div><div><br></div><div>And failing all that, you can follow the instructions in the docs to install from the git repository:</div><div><br></div><div><a href="http://yt-project.org/docs/dev/installing.html#installing-yt-from-source">http://yt-project.org/docs/dev/installing.html#installing-yt-from-source</a><br></div><div><br></div><div>Sorry for the trouble. We should have a new release of yt (version 3.4) out with a fix for this very soon. My plan is to work on getting the fix out the door during the sprints for the scipy conference next weekend. Hopefully this next release will include a couple of fixes for Ramses data, including support for Ramses-RT datasets:</div><div><br></div><div><a href="https://github.com/yt-project/yt/pull/1456">https://github.com/yt-project/yt/pull/1456</a><br></div><div><br></div><div>and support for extra particle fields:</div><div><br></div><div><a href="https://github.com/yt-project/yt/pull/1470">https://github.com/yt-project/yt/pull/1470</a></div><div dir="auto"><br></div><br><div class="gmail_quote"><div>On Sun, Jul 9, 2017 at 6:26 PM Chongchong He <<a href="mailto:chongchong@astro.umd.edu" target="_blank">chongchong@astro.umd.edu</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div style="word-wrap:break-word"><div>Dear Sir/Madam,</div><div><br></div><div>I came into a problem when using yt to deal with my RAMSES data. The procedures to produce the error and some info is as follow. Do you have any idea what’s going wrong here?</div><div><br></div><div>I use the data from <a href="http://yt-project.org/data/" target="_blank">yt-project.org/data/</a>, in the row of ramses_extra_fields_small. The python code that generates this issue is uploaded to <a href="http://paste.yt-project.org/show/7203/" target="_blank">http://paste.yt-project.<wbr>org/show/7203/</a> </div><div><br></div><div>On macOS Sierra 10.12.5</div><div><br></div><div>The print-out message:</div><div><span style="color:rgb(40,40,40);font-family:Menlo;font-size:14px;background-color:rgb(220,199,180)">yt : [INFO </span><span style="color:rgb(40,40,40);font-family:Menlo;font-size:14px;background-color:rgb(220,199,180)">] 2017-07-09 14:06:59,521 Parameters: current_time</span><span style="color:rgb(40,40,40);font-family:Menlo;font-size:14px;background-color:rgb(220,199,180)"> </span><span style="color:rgb(40,40,40);font-family:Menlo;font-size:14px;background-color:rgb(220,199,180)">= 0.03744727779</span></div><div><div style="margin:0px;font-size:14px;line-height:normal;font-family:Menlo;color:rgb(40,40,40);background-color:rgb(220,199,180)"><div style="margin:0px;line-height:normal"><span style="font-variant-ligatures:no-common-ligatures">yt : [INFO ] 2017-07-09 14:06:59,521 Parameters: domain_dimensions = [32 32 32]</span></div><div style="margin:0px;line-height:normal"><span style="font-variant-ligatures:no-common-ligatures">yt : [INFO ] 2017-07-09 14:06:59,521 Parameters: domain_left_edge = [ 0. 0. 0.]</span></div><div style="margin:0px;line-height:normal"><span style="font-variant-ligatures:no-common-ligatures">yt : [INFO ] 2017-07-09 14:06:59,521 Parameters: domain_right_edge = [ 1. 1. 1.]</span></div><div style="margin:0px;line-height:normal"><span style="font-variant-ligatures:no-common-ligatures">yt : [INFO ] 2017-07-09 14:06:59,521 Parameters: cosmological_simulation = 0</span></div></div><div style="margin:0px;font-size:14px;line-height:normal;font-family:Menlo;color:rgb(40,40,40);background-color:rgb(220,199,180)"><span style="font-variant-ligatures:no-common-ligatures">Segmentation fault: 11</span></div></div><div><br></div><div>Some info:</div><div><span style="font-family:Menlo;font-size:14px;background-color:rgb(220,199,180);font-variant-ligatures:no-common-ligatures;color:rgb(139,140,0)"><b>~</b></span><span style="color:rgb(40,40,40);font-family:Menlo;font-size:14px;background-color:rgb(220,199,180);font-variant-ligatures:no-common-ligatures">$ yt version</span></div><div><div style="margin:0px;font-size:14px;line-height:normal;font-family:Menlo;color:rgb(40,40,40);background-color:rgb(220,199,180);min-height:16px"><span style="font-variant-ligatures:no-common-ligatures"></span><br></div><div style="margin:0px;font-size:14px;line-height:normal;font-family:Menlo;color:rgb(40,40,40);background-color:rgb(220,199,180)"><span style="font-variant-ligatures:no-common-ligatures">yt module located at:</span></div><div style="margin:0px;font-size:14px;line-height:normal;font-family:Menlo;color:rgb(40,40,40);background-color:rgb(220,199,180)"><span style="font-variant-ligatures:no-common-ligatures"> /Users/chongchonghe/local/yt-<wbr>conda/lib/python2.7/site-<wbr>packages</span></div><div style="margin:0px;font-size:14px;line-height:normal;font-family:Menlo;color:rgb(40,40,40);background-color:rgb(220,199,180);min-height:16px"><span style="font-variant-ligatures:no-common-ligatures"></span><br></div><div style="margin:0px;font-size:14px;line-height:normal;font-family:Menlo;color:rgb(40,40,40);background-color:rgb(220,199,180)"><span style="font-variant-ligatures:no-common-ligatures">The current version of yt is:</span></div><div style="margin:0px;font-size:14px;line-height:normal;font-family:Menlo;color:rgb(40,40,40);background-color:rgb(220,199,180);min-height:16px"><span style="font-variant-ligatures:no-common-ligatures"></span><br></div><div style="margin:0px;font-size:14px;line-height:normal;font-family:Menlo;color:rgb(40,40,40);background-color:rgb(220,199,180)"><span style="font-variant-ligatures:no-common-ligatures">---</span></div><div style="margin:0px;font-size:14px;line-height:normal;font-family:Menlo;color:rgb(40,40,40);background-color:rgb(220,199,180)"><span style="font-variant-ligatures:no-common-ligatures">Version = 3.4-dev</span></div><div style="margin:0px;font-size:14px;line-height:normal;font-family:Menlo;color:rgb(40,40,40);background-color:rgb(220,199,180)"><span style="font-variant-ligatures:no-common-ligatures">---</span></div><div style="margin:0px;font-size:14px;line-height:normal;font-family:Menlo;color:rgb(40,40,40);background-color:rgb(220,199,180)"><span style="font-variant-ligatures:no-common-ligatures;color:rgb(139,140,0)"><b>~</b></span><span style="font-variant-ligatures:no-common-ligatures">$ python --version</span></div><div style="margin:0px;font-size:14px;line-height:normal;font-family:Menlo;color:rgb(40,40,40);background-color:rgb(220,199,180)"><span style="font-variant-ligatures:no-common-ligatures">Python 2.7.13</span></div></div><div><br></div><div><br></div><div>On Red Hat Enterprise Linux Server 7.3</div><div><br></div><div>The print-out message:</div><div><span style="color:rgb(40,40,40);font-family:Menlo;font-size:14px;background-color:rgb(220,199,180)">yt : [INFO </span><span style="color:rgb(40,40,40);font-family:Menlo;font-size:14px;background-color:rgb(220,199,180)">] 2017-07-09 14:19:10,883 Parameters: current_time</span><span style="color:rgb(40,40,40);font-family:Menlo;font-size:14px;background-color:rgb(220,199,180)"> </span><span style="color:rgb(40,40,40);font-family:Menlo;font-size:14px;background-color:rgb(220,199,180)">= 0.03744727779</span></div><div><div style="margin:0px;font-size:14px;line-height:normal;font-family:Menlo;color:rgb(40,40,40);background-color:rgb(220,199,180)"><span style="font-variant-ligatures:no-common-ligatures">yt : [INFO ] 2017-07-09 14:19:10,883 Parameters: domain_dimensions = [32 32 32]</span></div><div style="margin:0px;font-size:14px;line-height:normal;font-family:Menlo;color:rgb(40,40,40);background-color:rgb(220,199,180)"><span style="font-variant-ligatures:no-common-ligatures">yt : [INFO ] 2017-07-09 14:19:10,884 Parameters: domain_left_edge = [ 0. 0. 0.]</span></div><div style="margin:0px;font-size:14px;line-height:normal;font-family:Menlo;color:rgb(40,40,40);background-color:rgb(220,199,180)"><span style="font-variant-ligatures:no-common-ligatures">yt : [INFO ] 2017-07-09 14:19:10,884 Parameters: domain_right_edge = [ 1. 1. 1.]</span></div><div style="margin:0px;font-size:14px;line-height:normal;font-family:Menlo;color:rgb(40,40,40);background-color:rgb(220,199,180)"><span style="font-variant-ligatures:no-common-ligatures">yt : [INFO ] 2017-07-09 14:19:10,884 Parameters: cosmological_simulation = 0</span></div></div><div style="margin:0px;font-size:14px;line-height:normal;font-family:Menlo;color:rgb(40,40,40);background-color:rgb(220,199,180)"><span style="font-variant-ligatures:no-common-ligatures">Segmentation fault (core dumped)</span></div><div><br></div><div>Some info:</div><div><div style="margin:0px;font-size:14px;line-height:normal;font-family:Menlo;color:rgb(40,40,40);background-color:rgb(220,199,180)"><span style="font-variant-ligatures:no-common-ligatures">startrek% yt version</span></div><div style="margin:0px;font-size:14px;line-height:normal;font-family:Menlo;color:rgb(40,40,40);background-color:rgb(220,199,180);min-height:16px"><span style="font-variant-ligatures:no-common-ligatures"></span><br></div><div style="margin:0px;font-size:14px;line-height:normal;font-family:Menlo;color:rgb(40,40,40);background-color:rgb(220,199,180)"><span style="font-variant-ligatures:no-common-ligatures">yt module located at:</span></div><div style="margin:0px;font-size:14px;line-height:normal;font-family:Menlo;color:rgb(40,40,40);background-color:rgb(220,199,180)"><span style="font-variant-ligatures:no-common-ligatures"> /startrek/chongchong/codes/yt-<wbr>conda/lib/python2.7/site-<wbr>packages</span></div><div style="margin:0px;font-size:14px;line-height:normal;font-family:Menlo;color:rgb(40,40,40);background-color:rgb(220,199,180);min-height:16px"><span style="font-variant-ligatures:no-common-ligatures"></span><br></div><div style="margin:0px;font-size:14px;line-height:normal;font-family:Menlo;color:rgb(40,40,40);background-color:rgb(220,199,180)"><span style="font-variant-ligatures:no-common-ligatures">The current version of yt is:</span></div><div style="margin:0px;font-size:14px;line-height:normal;font-family:Menlo;color:rgb(40,40,40);background-color:rgb(220,199,180);min-height:16px"><span style="font-variant-ligatures:no-common-ligatures"></span><br></div><div style="margin:0px;font-size:14px;line-height:normal;font-family:Menlo;color:rgb(40,40,40);background-color:rgb(220,199,180)"><span style="font-variant-ligatures:no-common-ligatures">---</span></div><div style="margin:0px;font-size:14px;line-height:normal;font-family:Menlo;color:rgb(40,40,40);background-color:rgb(220,199,180)"><span style="font-variant-ligatures:no-common-ligatures">Version = 3.3.5</span></div><div style="margin:0px;font-size:14px;line-height:normal;font-family:Menlo;color:rgb(40,40,40);background-color:rgb(220,199,180)"><span style="font-variant-ligatures:no-common-ligatures">---</span></div><div style="margin:0px;font-size:14px;line-height:normal;font-family:Menlo;color:rgb(40,40,40);background-color:rgb(220,199,180)"><span style="font-variant-ligatures:no-common-ligatures">startrek% python --version</span></div><div style="margin:0px;font-size:14px;line-height:normal;font-family:Menlo;color:rgb(40,40,40);background-color:rgb(220,199,180)"><span style="font-variant-ligatures:no-common-ligatures">Python 2.7.13 :: Continuum Analytics, Inc.</span></div></div><div><br></div><div><br></div><div>Many thanks,</div><div><br></div><div>ChongChong He</div><div>Graduate Student, Department of Astronomy</div><div>University of Maryland, College Park, 20742, MD</div></div>______________________________<wbr>_________________<br>
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