[Pw_forum] floating-point exceptions are signalling: IEEE_DENORMAL

[Uttam Paliwal]

Hi
when i run  run_example script form PP example then it runs successfully.
But I find a warning messege . The termial windows show following

$ ./run_example

/cygdrive/d/qe60/qe-6.0/examples/pp/example01 : starting

This example shows how to use pw.x and postprocessing codes to make a
contour plot in the [110] plane of the charge density for Si, and to
plot the band structure of Si.
which: no curl in
(/usr/local/bin:/usr/bin:/cygdrive/c/Windows/system32:/cygdrive/c/Windows:/cygdrive/c/Windows/System32/Wbem:/cygdrive/c/Windows/System32/WindowsPowerShell/v1.0:/cygdrive/d/qe60/qe-6.0/PWgui-6.0:/cygdrive/d/xcrysden-1.5.53-cygwin:/usr/lib/lapack)

  executables directory: /cygdrive/d/qe60/qe-6.0/bin
  pseudo directory:      /cygdrive/d/qe60/qe-6.0/pseudo
  temporary directory:   /cygdrive/d/qe60/qe-6.0/tempdir
  checking that needed directories and files exist...
gnuplot not in PATH
Results will not be plotted
 done

running pw.x as:         /cygdrive/d/qe60/qe-6.0/bin/pw.x  -nk 1 -nd 1 -nb
1 -nt 1
  running pp.x as:         /cygdrive/d/qe60/qe-6.0/bin/pp.x  -nk 1 -nd 1
-nb 1 -nt 1
  running plotrho.x as:  /cygdrive/d/qe60/qe-6.0/bin/plotrho.x
  running bands.x as:      /cygdrive/d/qe60/qe-6.0/bin/bands.x  -nk 1 -nd 1
-nb 1 -nt 1
  running plotband.x as: /cygdrive/d/qe60/qe-6.0/bin/plotband.x

 running the scf calculation...Note: The following floating-point
exceptions are signalling: IEEE_DENORMAL
 done
  running pp.x to do a 2-d plot of the charge density... done
  running plotrho.x to generate rho.ps... done

  running pp.x to do another 2-d plot of the charge density... done
  running the band-structure calculation for Si...Note: The following
floating-point exceptions are signalling: IEEE_DENORMAL
 done
  running the post-processing for band structure... done
  running plotband.x to generate sibands.ps... done

  cleaning /cygdrive/d/qe60/qe-6.0/tempdir...
/cygdrive/d/qe60/qe-6.0/examples/pp/example01: done



kindly provide suggestion




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