Hi Tao,
Your problem seems rather related to the operation system.
Are you using Linux or Windows?
If you are using Linux and Intel CPUs then you need to install the Intel
MPI library and make sure that you load the MPI environmental variable
before you run pw.x. Please baidu it.
If the MPI library is loaded, run it as "mpirun -np 8 ./pw.x <input>
out" to use all the cores.
Rolly
On 09/13/2016 05:20 AM, Yu, Tao wrote:
What of parallel environment is required? like MPI, or something else?
I just want to make sure with that, only serial QE can run. Can we
still run QE with 8 cores, not crossing nodes? Or that means I can
only run QE with 1 core.
Tao
------------------------------------------------------------------------
*From:* pw_forum-boun...@pwscf.org <pw_forum-boun...@pwscf.org> on
behalf of Paolo Giannozzi <p.gianno...@gmail.com>
*Sent:* Monday, September 12, 2016 2:52:36 PM
*To:* PWSCF Forum
*Subject:* Re: [Pw_forum] can not install parallel run of QE
It is explained in some detail in the user guide: "configure" did not
detect your parallel environment, for one out 1001 possible reasons
Paolo
On Mon, Sep 12, 2016 at 9:49 PM, Yu, Tao <t...@tntech.edu
<mailto:t...@tntech.edu>> wrote:
Hi,
During the installation process, after running ./configure, it
returned a piece of information,
Parallel environment not detected \(is this a parallel machine?\).\
Configured for compilation of serial executables.
What happened there? Does this mean I can only run with 1CPU? How
to fix that?
Many thanks,
Tao
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Paolo Giannozzi, Dip. Scienze Matematiche Informatiche e Fisiche,
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