Hi sir,<br>
<br>
Hope so that all of you will be fine, I am new to linux and I tried to install PWscf in parallel on a quad core machine but still facing problems . What I did sequentially, i am writing here<br>
<br>
1) i download mpich2-1.0.4p1 from internet and install it.<br>
2) then i installed espresso4.0.2 using the following two commands<br>
<br>
(a) env MPIF90=mpif77 ./configure (after this command finally it gave mssg, parallel envoirnment successful)<br>
(b) make all<br>
<br>
after that when i tried any example it is giving mssg as:<br>
<br>
Program PWSCF v.4.0.2 starts ...<br>
Today is 10Aug2009 at 18:51:21<br>
<br>
Parallel version (MPI)<br>
<br>
Number of processors in use: 1<br>
<br>
For Norm-Conserving or Ultrasoft (Vanderbilt) Pseudopotentials or PAW<br>
<br>
Current dimensions of program pwscf are:<br>
Max number of different atomic species (ntypx) = 10<br>
Max number of k-points (npk) = 40000<br>
Max angular momentum in pseudopotentials (lmaxx) = 3<br>
<br>
Iterative solution of the eigenvalue problem<br>
Too few procs for parallel algorithm<br>
we need at least 4 procs per pool<br>
<br>
a serial algorithm will be used<br>
<br>
<br>
Planes per process (thick) : nr3 = 15 npp = 15 ncplane = 225<br>
<br>
Proc/ planes cols G planes cols G columns G<br>
Pool (dense grid) (smooth grid) (wavefct grid)<br>
1 15 121 869 15 121 869 31 113<br>
<br>
<br>
AND when i tried to execute my files using the command<br>
mpirun -np 4 /home/sushil/espresso-4.0.2/bin/pw.x -in yvo.inp> scf.out1<br><div id=":4q" class="ii gt">
<br>
it is giving in output as:<br>
<br>
piexec_localhost.localdomain: cannot connect to local mpd<br>
(/tmp/mpd2.console_sushil); possible causes:<br>
1. no mpd is running on this host<br>
2. an mpd is running but was started without a "console" (-n option)<br>
In case 1, you can start an mpd on this host with:<br>
mpd &<br>
and you will be able to run jobs just on this host.<br>
For more details on starting mpds on a set of hosts, see<br>
the MPICH2 Installation Guide.<br>
<br>
please help me and guide me .<br><br>Thanks<br><br>Yours sincerly,<br>
<font color="#888888"><br>Dev Sharma<br>University of Delhi,<br>India<br></font></div>