<DIV><SPAN lang="EN-US"><PRE><SPAN lang="EN-US" style="FONT-FAMILY: 'Times New Roman'"><PRE><SPAN lang="EN-US" style="FONT-FAMILY: 'Times New Roman'"><FONT size="3">When I am running the parallel version of espresso-4.0.4 for electron phonon calculation on a Linux cluster, I get the error message after finishing the Gamma point calculation. <o:p></o:p></FONT></SPAN></PRE><PRE><SPAN lang="EN-US" style="FONT-FAMILY: 'Times New Roman'"><FONT size="3">task #<SPAN style="mso-spacerun: yes"> </SPAN>13<o:p></o:p></FONT></SPAN></PRE><PRE><SPAN lang="EN-US" style="FONT-FAMILY: 'Times New Roman'"><FONT size="3">from elphsum : error #<SPAN style="mso-spacerun: yes"> </SPAN>1<o:p></o:p></FONT></SPAN></PRE><PRE><SPAN lang="EN-US" style="FONT-FAMILY: 'Times New Roman'"><FONT size="3">pools and a2F not implemented<o:p></o:p></FONT></SPAN></PRE><PRE><SPAN lang="EN-US" style="FONT-FAMILY: 'Times New Roman'"><FONT size="3">I noticed that Paolo said “electron-phonon (EP) calculations do not work together with k-point parallelization”. Does it mean this error message has nothing to do with the version of quantum-espresso? Or whether there is a method which can improve the efficiency of EP calculation? <SPAN style="mso-spacerun: yes"> </SPAN><o:p></o:p></FONT></SPAN></PRE><PRE><SPAN lang="EN-US" style="FONT-FAMILY: 'Times New Roman'"><FONT size="3">I run the order as follows: <o:p></o:p></FONT></SPAN></PRE><PRE><SPAN lang="EN-US" style="FONT-FAMILY: 'Times New Roman'"><FONT size="3">nohup mpirun –np 16 –machinefile node ~/proc/espresso-4.0.4/bin/ph.x –npool 16 <test.elph.in> test.elph.out &<o:p></o:p></FONT></SPAN></PRE><P class="MsoNormal" style="MARGIN: 0pt"><SPAN lang="EN-US"><o:p><FONT size="3"> Thanks in advance,</FONT></o:p></SPAN></P><P class="MsoNormal" style="MARGIN: 0pt; LINE-HEIGHT: 18.75pt; TEXT-ALIGN: left; mso-pagination: widow-orphan; tab-stops: 45.8pt 91.6pt 137.4pt 183.2pt 229.0pt 274.8pt 320.6pt 366.4pt 412.2pt 458.0pt 503.8pt 549.6pt 595.4pt 641.2pt 687.0pt 732.8pt" align="left"><SPAN lang="EN-US" style="FONT-SIZE: 12pt; mso-font-kerning: 0pt">===============================================</SPAN><SPAN lang="EN-US" style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-font-kerning: 0pt; mso-bidi-font-family: 宋体"><o:p></o:p></SPAN></P><P class="MsoNormal" style="MARGIN: 0pt; LINE-HEIGHT: 18.75pt; TEXT-ALIGN: left; mso-pagination: widow-orphan; tab-stops: 45.8pt 91.6pt 137.4pt 183.2pt 229.0pt 274.8pt 320.6pt 366.4pt 412.2pt 458.0pt 503.8pt 549.6pt 595.4pt 641.2pt 687.0pt 732.8pt" align="left"><SPAN lang="EN-US" style="FONT-SIZE: 12pt; mso-font-kerning: 0pt">Xiang-Feng ZHOU </SPAN><SPAN lang="EN-US" style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-font-kerning: 0pt; mso-bidi-font-family: 宋体"><o:p></o:p></SPAN></P><P class="MsoNormal" style="MARGIN: 0pt; LINE-HEIGHT: 18.75pt; TEXT-ALIGN: left; mso-pagination: widow-orphan; tab-stops: 45.8pt 91.6pt 137.4pt 183.2pt 229.0pt 274.8pt 320.6pt 366.4pt 412.2pt 458.0pt 503.8pt 549.6pt 595.4pt 641.2pt 687.0pt 732.8pt" align="left"><SPAN lang="EN-US" style="FONT-SIZE: 12pt; mso-font-kerning: 0pt">Ph.D candidate</SPAN><SPAN lang="EN-US" style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-font-kerning: 0pt; mso-bidi-font-family: 宋体"><o:p></o:p></SPAN></P><P class="MsoNormal" style="MARGIN: 0pt; LINE-HEIGHT: 18.75pt; TEXT-ALIGN: left; mso-pagination: widow-orphan; tab-stops: 45.8pt 91.6pt 137.4pt 183.2pt 229.0pt 274.8pt 320.6pt 366.4pt 412.2pt 458.0pt 503.8pt 549.6pt 595.4pt 641.2pt 687.0pt 732.8pt" align="left"><SPAN lang="EN-US" style="FONT-SIZE: 12pt; mso-font-kerning: 0pt"><SPAN style="mso-spacerun: yes"> </SPAN>Physics Dept. of Nanjing University </SPAN><SPAN lang="EN-US" style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-font-kerning: 0pt; mso-bidi-font-family: 宋体"><o:p></o:p></SPAN></P><P class="MsoNormal" style="MARGIN: 0pt; LINE-HEIGHT: 18.75pt; TEXT-ALIGN: left; mso-pagination: widow-orphan; tab-stops: 45.8pt 91.6pt 137.4pt 183.2pt 229.0pt 274.8pt 320.6pt 366.4pt 412.2pt 458.0pt 503.8pt 549.6pt 595.4pt 641.2pt 687.0pt 732.8pt" align="left"><SPAN lang="EN-US" style="FONT-SIZE: 12pt; mso-font-kerning: 0pt"><SPAN style="mso-spacerun: yes"> </SPAN>National Lab. of Solid State Microstructures </SPAN><SPAN lang="EN-US" style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-font-kerning: 0pt; mso-bidi-font-family: 宋体"><o:p></o:p></SPAN></P><P class="MsoNormal" style="MARGIN: 0pt; LINE-HEIGHT: 18.75pt; TEXT-ALIGN: left; mso-pagination: widow-orphan; tab-stops: 45.8pt 91.6pt 137.4pt 183.2pt 229.0pt 274.8pt 320.6pt 366.4pt 412.2pt 458.0pt 503.8pt 549.6pt 595.4pt 641.2pt 687.0pt 732.8pt" align="left"></P><P class="MsoNormal" style="MARGIN: 0pt; LINE-HEIGHT: 18.75pt; TEXT-ALIGN: left; mso-pagination: widow-orphan; tab-stops: 45.8pt 91.6pt 137.4pt 183.2pt 229.0pt 274.8pt 320.6pt 366.4pt 412.2pt 458.0pt 503.8pt 549.6pt 595.4pt 641.2pt 687.0pt 732.8pt" align="left"><SPAN lang="EN-US" style="FONT-SIZE: 12pt; mso-font-kerning: 0pt"></SPAN><SPAN lang="EN-US" style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-font-kerning: 0pt; mso-bidi-font-family: 宋体"><o:p></o:p></SPAN></P><SPAN lang="EN-US" style="FONT-SIZE: 12pt; mso-font-kerning: 0pt"><SPAN style="mso-spacerun: yes"> </SPAN>China </SPAN><SPAN lang="EN-US" style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-font-kerning: 0pt; mso-bidi-font-family: 宋体"><o:p></o:p></SPAN><P class="MsoNormal" style="MARGIN: 0pt; LINE-HEIGHT: 18.75pt; TEXT-ALIGN: left; mso-pagination: widow-orphan; tab-stops: 45.8pt 91.6pt 137.4pt 183.2pt 229.0pt 274.8pt 320.6pt 366.4pt 412.2pt 458.0pt 503.8pt 549.6pt 595.4pt 641.2pt 687.0pt 732.8pt" align="left"><SPAN lang="EN-US" style="FONT-SIZE: 12pt; mso-font-kerning: 0pt"><SPAN style="mso-spacerun: yes"> </SPAN>===============================================</SPAN><SPAN lang="EN-US" style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-font-kerning: 0pt; mso-bidi-font-family: 宋体"><o:p></o:p></SPAN></P></SPAN></PRE></SPAN></DIV><br><!-- footer --><br><span title="neteasefooter"/><hr/>
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