
<html><head></head><body><div class="yahoo-style-wrap" style="font-family:Helvetica Neue, Helvetica, Arial, sans-serif;font-size:16px;"><div dir="ltr" data-setdir="false"><span><pre><span><span><span style="font-size:14.0pt;line-height:107%;font-family:"Calibri",sans-serif;mso-ascii-theme-font:minor-latin;mso-fareast-font-family:Calibri;mso-fareast-theme-font:minor-latin;mso-hansi-theme-font:minor-latin;mso-bidi-font-family:"Times New Roman";color:black;mso-ansi-language:EN-US;mso-fareast-language:EN-US;mso-bidi-language:AR-SA"><sub><span><span style="font-size:11.0pt;line-height:107%;font-family:"Calibri",sans-serif;mso-ascii-theme-font:minor-latin;mso-fareast-font-family:Calibri;mso-fareast-theme-font:minor-latin;mso-hansi-theme-font:minor-latin;mso-bidi-font-family:Arial;mso-bidi-theme-font:minor-bidi;mso-ansi-language:EN-US;mso-fareast-language:EN-US;mso-bidi-language:AR-SA"><span><span style="font-size:11.0pt;line-height:107%;font-family:"Calibri",sans-serif;mso-ascii-theme-font:minor-latin;mso-fareast-font-family:Calibri;mso-fareast-theme-font:minor-latin;mso-hansi-theme-font:minor-latin;mso-bidi-font-family:Arial;mso-bidi-theme-font:minor-bidi;mso-ansi-language:EN-US;mso-fareast-language:EN-US;mso-bidi-language:AR-SA"></span></span></span></span></sub></span></span><span class="ydpaae3e8dbMsoCommentReference"><span style="font-size:8.0pt;line-height:107%;font-family:"Calibri",sans-serif;mso-ascii-theme-font:minor-latin;mso-fareast-font-family:Calibri;mso-fareast-theme-font:minor-latin;mso-hansi-theme-font:minor-latin;mso-bidi-font-family:Arial;mso-bidi-theme-font:minor-bidi;mso-ansi-language:EN-US;mso-fareast-language:EN-US;mso-bidi-language:AR-SA"><a class="ydpaae3e8dbmsocomanchor" id="ydpaae3e8db_anchor_1" href="#_msocom_1" name="_msoanchor_1" rel="nofollow" target="_blank"></a></span></span></span><span style="font-size:12.0pt;line-height:107%;font-family:"Times New Roman",serif;mso-ascii-theme-font:major-bidi;mso-hansi-theme-font:major-bidi;mso-bidi-theme-font:major-bidi">Dear Wien2k</span><span style="font-size:12.0pt;line-height:107%;font-family:"Times New Roman",serif;mso-ascii-theme-font:major-bidi;mso-hansi-theme-font:major-bidi;mso-bidi-theme-font:major-bidi"> Mailing list users</span><div>

<span style="font-size:12.0pt;line-height:107%;font-family:"Times New Roman",serif;mso-ascii-theme-font:major-bidi;mso-hansi-theme-font:major-bidi;mso-bidi-theme-font:major-bidi">In Egypt we are about to invest some money from a project fund to <b>Buy or Rent </b>a high performance computer to calculate the magnetic, electronic, elastic, and magnetocaloric<span>  </span>properties of selected rare-earth transition metal compounds to include R<sub>2</sub>Fe<sub>14</sub>B, Nd<sub>3</sub>Co<sub>11</sub>B<sub>4</sub>.</span><span style="font-size:12.0pt;line-height:107%;font-family:"Times New Roman",serif;mso-ascii-theme-font:major-bidi;mso-hansi-theme-font:major-bidi;mso-bidi-theme-font:major-bidi"></span><span style="font-size:12.0pt;line-height:107%;font-family:"Times New Roman",serif;mso-ascii-theme-font:major-bidi;mso-hansi-theme-font:major-bidi;mso-bidi-theme-font:major-bidi">The problem is we have to state in our request for this fund how much computer</span><span style="font-size:12.0pt;line-height:107%;font-family:"Times New Roman",serif;mso-ascii-theme-font:major-bidi;mso-hansi-theme-font:major-bidi;mso-bidi-theme-font:major-bidi"> CPU usage will be required for say a 60-atom model to run. Therefore, we want</span><span style="font-size:12.0pt;line-height:107%;font-family:"Times New Roman",serif;mso-ascii-theme-font:major-bidi;mso-hansi-theme-font:major-bidi;mso-bidi-theme-font:major-bidi"> CPU requirements versus the number of atoms for Wein2k. Also need to estimate</span><span style="font-size:12.0pt;line-height:107%;font-family:"Times New Roman",serif;mso-ascii-theme-font:major-bidi;mso-hansi-theme-font:major-bidi;mso-bidi-theme-font:major-bidi"> how many times these models will need to be executed to perform the field,</span><span style="font-size:12.0pt;line-height:107%;font-family:"Times New Roman",serif;mso-ascii-theme-font:major-bidi;mso-hansi-theme-font:major-bidi;mso-bidi-theme-font:major-bidi"> temperature ranges, first and second order phase transitions, magnetization, specific</span><span style="font-size:12.0pt;line-height:107%;font-family:"Times New Roman",serif;mso-ascii-theme-font:major-bidi;mso-hansi-theme-font:major-bidi;mso-bidi-theme-font:major-bidi"> heat, entropy, and MCE properties i.e. the isothermal change in entropy and the</span><span style="font-size:12.0pt;line-height:107%;font-family:"Times New Roman",serif;mso-ascii-theme-font:major-bidi;mso-hansi-theme-font:major-bidi;mso-bidi-theme-font:major-bidi"> adiabatic change in temperature in a wide range of magnetic fields and in a</span><span style="font-size:12.0pt;line-height:107%;font-family:"Times New Roman",serif;mso-ascii-theme-font:major-bidi;mso-hansi-theme-font:major-bidi;mso-bidi-theme-font:major-bidi"> temperature range up to the Curie temperature of the studied systems.</span>


<p class="ydp83908200MsoNormal" style="text-align:justify"><span style="font-size:12.0pt;line-height:107%;font-family:"Times New Roman",serif;mso-ascii-theme-font:major-bidi;mso-hansi-theme-font:major-bidi;mso-bidi-theme-font:major-bidi">I am not sure that we can estimate the number of flops; so far, I have not seen this type of information on the internet for wien2k. There are tools, but not clear, if there has been a paper on the subject. The issue I see is that we need to estimate how much computer time to ask for, so if we can get an estimate that

would be a good idea. If they give us, 200 or 2000 hours will that, be enough to do what we want? How much computer time/gflops do we ask for?</span></p>

<span style="font-size:12.0pt;line-height:107%;font-family:"Times New Roman",serif;mso-ascii-theme-font:major-bidi;mso-hansi-theme-font:major-bidi;mso-bidi-theme-font:major-bidi">Thank you for</span><span style="font-size:12.0pt;line-height:107%;font-family:"Times New Roman",serif;mso-ascii-theme-font:major-bidi;mso-hansi-theme-font:major-bidi;mso-bidi-theme-font:major-bidi"> your patience.</span>


<p class="ydp83908200MsoNormal" style="text-align:justify"><span style="font-size:12.0pt;line-height:107%;font-family:"Times New Roman",serif;mso-ascii-theme-font:major-bidi;mso-hansi-theme-font:major-bidi;mso-bidi-theme-font:major-bidi">Dr / Mohammed Said M. Abu-Elmagd</span></p><span style="font-size:12.0pt;line-height:107%;font-family:"Times New Roman",serif;mso-ascii-theme-font:major-bidi;mso-hansi-theme-font:major-bidi;mso-bidi-theme-font:major-bidi">Ph.D. in Theoretical</span><span style="font-size:12.0pt;line-height:107%;font-family:"Times New Roman",serif;mso-ascii-theme-font:major-bidi;mso-hansi-theme-font:major-bidi;mso-bidi-theme-font:major-bidi"> Physics</span>


<i><span style="font-size:12.0pt;line-height:107%;font-family:"Times New Roman",serif;mso-ascii-theme-font:major-bidi;mso-fareast-font-family:Calibri;mso-fareast-theme-font:minor-latin;mso-hansi-theme-font:major-bidi;mso-bidi-theme-font:major-bidi;mso-ansi-language:EN-US;mso-fareast-language:EN-US;mso-bidi-language:AR-SA">Department of</span></i><i><span style="font-size:12.0pt;line-height:107%;font-family:"Times New Roman",serif;mso-ascii-theme-font:major-bidi;mso-fareast-font-family:Calibri;mso-fareast-theme-font:minor-latin;mso-hansi-theme-font:major-bidi;mso-bidi-theme-font:major-bidi;mso-ansi-language:EN-US;mso-fareast-language:EN-US;mso-bidi-language:AR-SA"> Physics, Higher Institute of Engineering,

Shourok Academy, Cairo, Egypt.</span></i></div>

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