[petsc-users] About the complex version of gmres.

Dear Petsc developers, I am using Petsc to solve a complex system ,AX=B. A is complex and B is real. And the petsc was configured with Configure options --download-mpich --download-fblaslapack=1 --with-cc=gcc --with-cxx=g++ --with-fc=gfortran --download-triangle --with-scalar-type=complex A and B were also imported to matlab and the same system was solved. The direct and iterative solver in matlab give the same result, which are quite different from the result from Petsc. A and B are attached. x from petsc is also attached. I am using only one processor. It is weird. Thanks a lot. Xiaodong