<html xmlns:v="urn:schemas-microsoft-com:vml" xmlns:o="urn:schemas-microsoft-com:office:office" xmlns:w="urn:schemas-microsoft-com:office:word" xmlns:m="http://schemas.microsoft.com/office/2004/12/omml" xmlns="http://www.w3.org/TR/REC-html40"><head><meta http-equiv=Content-Type content="text/html; charset=us-ascii"><meta name=Generator content="Microsoft Word 15 (filtered medium)"><style><!--
/* Font Definitions */
@font-face
{font-family:SimSun;
panose-1:2 1 6 0 3 1 1 1 1 1;}
@font-face
{font-family:"Cambria Math";
panose-1:2 4 5 3 5 4 6 3 2 4;}
@font-face
{font-family:Calibri;
panose-1:2 15 5 2 2 2 4 3 2 4;}
@font-face
{font-family:SimSun;
panose-1:2 1 6 0 3 1 1 1 1 1;}
/* Style Definitions */
p.MsoNormal, li.MsoNormal, div.MsoNormal
{margin:0in;
margin-bottom:.0001pt;
text-align:justify;
text-justify:inter-ideograph;
font-size:10.5pt;
font-family:"Calibri",sans-serif;}
a:link, span.MsoHyperlink
{mso-style-priority:99;
color:#0563C1;
text-decoration:underline;}
a:visited, span.MsoHyperlinkFollowed
{mso-style-priority:99;
color:#954F72;
text-decoration:underline;}
span.EmailStyle17
{mso-style-type:personal-compose;
font-family:"Calibri",sans-serif;
color:windowtext;}
.MsoChpDefault
{mso-style-type:export-only;
font-size:10.5pt;}
@page WordSection1
{size:8.5in 11.0in;
margin:1.0in 1.25in 1.0in 1.25in;}
div.WordSection1
{page:WordSection1;}
--></style><!--[if gte mso 9]><xml>
<o:shapedefaults v:ext="edit" spidmax="1026" />
</xml><![endif]--><!--[if gte mso 9]><xml>
<o:shapelayout v:ext="edit">
<o:idmap v:ext="edit" data="1" />
</o:shapelayout></xml><![endif]--></head><body lang=EN-US link="#0563C1" vlink="#954F72"><div class=WordSection1><p class=MsoNormal><span style='font-size:11.0pt'>Hi All,<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt'>My simulation seems to have no detail information on units, so I want to assign cgs to the output. However, when I do the following <o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt'>---------------------------------------------------------------------<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt'>import yt<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt'>units_override = {"length_unit":(1.0,"cm"),<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt'> "time_unit":(1.0,"s"),<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt'> "mass_unit":(1.0,"g"),<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt'> 'nele_unit': (1.0, "cm**-3"),<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt'> "magnetic_unit":(1.0,"gauss")}<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt'>ds = yt.load('flash_hdf5_plt_cnt_0000', units_override=units_override)<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt'>print ds.point([0,0,0])['magz']<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt'>print ds.point([0,0,0])['nele']<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt'>---------------------------------------------------------------------<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt'>The output is:<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt'>---------------------------------------------------------------------<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt'>[ 0.] code_magnetic<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt'>[ 2.87595814e+15] code_length**(-3)<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt'>---------------------------------------------------------------------<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt'>How can I get:<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt'>---------------------------------------------------------------------<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt'>[ 0.] gauss<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt'>[ 2.87595814e+15] cm**(-3)<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt'>---------------------------------------------------------------------<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt'>Thanks,<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt'>Yingchao<o:p></o:p></span></p></div></body></html>