The support of log double

["Gong Ding" <gdiso@xxxxxxxx>]

Hi,
  I found that PETSC supports long double type
float point number, which may be useful in my
semiconductor simulation code.
  But as i know, no long double support exists in
BLAS/LAPACK. So can any one tell me the truth
about long double. 
  Another problem about SNES is my code diverged 
with gcc, but works well with Intel icc. Does any
one meet the same problem? As a result, I 'd like
to try long double, which seems more accurate to
double.

Thanks
G.D.
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