Dear all<br>I want to follow the example  of the following page titled with " Monatomic Ni wire with a spin reversal"<br>http://iramis.cea.fr/Pisp/alexander.smogunov/PWCOND/examples.html<br>However, I found I could run the example correctly by using only 8 cores. If using 16, 32 and 64 cores, the code will stop at <br>" ngper, shell number =          804          82<br> ngper, n2d =          804         391<br>---  E-Ef =    2.0000000  k =    0.5000000   0.5000000<br>---  ie =          1  ik =          1" <br><br>and showed<br><br><br>"forrtl: severe (174): SIGSEGV, segmentation fault occurred<br>Image              PC                Routine            Line        Source       <br>      <br>pwcond.x           00000000025AD7C9  Unknown               Unknown  Unknown<br>pwcond.x           00000000025AC140  Unknown               Unknown  Unknown<br>pwcond.x           000000000255DBC2  Unknown               Unknown  Unknown<br>pwcond.x           00000000024F15F3  Unknown               Unknown  Unknown<br>pwcond.x           00000000024F753B  Unknown               Unknown  Unknown<br>libpthread.so.0    0000003F2280F710  Unknown               Unknown  Unknown<br>pwcond.x           00000000004F9B35  scatter_forw_             444  scatter_forw.<br>f90<br>pwcond.x           00000000004ADD66  do_cond_                  518  do_cond.f90<br>pwcond.x           00000000004A8B42  MAIN__                     22  condmain.f90<br>pwcond.x           0000000000498036  Unknown               Unknown  Unknown<br>libc.so.6          0000003F2241ED1D  Unknown               Unknown  Unknown<br>pwcond.x           0000000000497F29  Unknown               Unknown  Unknown"<br><br>So could anyone tell me how can I  fix this error so that I can using more cores to excute pwcond.x? I met this problem in both 5.1.2 and 5.2.<br><br>Thanks very much for any help.<br><br>Sincerely.<br><br>Pang Rui<br><h3> </h3><br><div><sign signid="99"><div style="color:#909090;font-family:Arial Narrow;font-size:12px"><br><br><br><br>------------------</div><div style="font-size:14px;font-family:Verdana;color:#000;"><div><div class="logo" style="width:305px;height:35px;line-height:35px;margin:20px 0 0 0;"><img src="https://exmail.qq.com/cgi-bin/viewfile?type=logo&domain=sustc.edu.cn"></div><div class="c_detail" style="margin:10px 0 0 0;"><h4 class="name" style="margin:0;font-size:14px;font-weight:bold;line-height:28px;zoom:1;">庞瑞(PANG Rui)</h4><p class="position" style="margin:0;line-height:22px;color:#a0a0a0;"></p><p class="department" style="margin:0;line-height:22px;color:#a0a0a0;">South University of Science and Technology of China/Department of Physics</p><p class="department" style="margin:0;line-height:22px;color:#a0a0a0;">No.1088,Xueyuan Road, Shenzhen,Guangdong<br></p><p class="phone" style="margin:0;line-height:22px;color:#a0a0a0;"></p></div></div></div></sign></div><div> </div><div><includetail><!--<![endif]--></includetail></div>