Jayesh Krishna <[email protected]>: Hi ,thank you for reading my E-mail, I'm a Chinese hydrodynamic student and helping my teacher to upgrade an old software, but I am facing a problem now. :( My system condition is : Win7 64bit + VS2010 + IVF Composer XE 2011 I downloaded "mpich2-1.4.1p1-win-ia3" and "mpich2-1.4.1p1-win-x86-64" ( I have tried both two .msi) I have run smpd.exe to install MPICH (run as Administrator) and registered the servere (smpd.exe -regserver) After creating a new IVF Console Application project, I set : 1、Win32 to x64, 2、 Set "Fortran\General\Additional Include Directories" to "C:\Program Files (x86)\MPICH2\include;" (I have tried 64bit too,but return the same result) 3、 Set"Linker\General\Additional Library Directories" to "C:\Program Files (x86)\MPICH2\lib;" 4、Set"Linker\Input\ Additional Dependencies" to "mpi.lib" Then I wrote a piece code of "Hello World" 。 program Lab include 'mpif.h' character * (MPI_MAX_PROCESSOR_NAME) processor_name integer myid,numprocs,namelen,rc,ierr call MPI_INIT(ierr) call MPI_COMM_RANK(MPI_COMM_WORLD,myid,ierr) call MPI_COMM_SIZE(MPI_COMM_WORLD,numprocs,ierr) call MPI_GET_PROCESSOR_NAME(processor_name,namelen,ierr) write(*,10) myid,numprocs,processor_name 10 FORMAT('Hello World!Process',I2,'of',I1,'on',20A) call MPI_FINALIZE(rc) end program Lab But there is a error "Cannot open mpi.lib" [image: 内嵌图片 1] I'm sure that the file path is correct (I have tried 64bit already.) [image: 内嵌图片 2] I have search the answer in Google for two days, unfortunaly I'm failed. I request you to give me some hints,Please. *__*.. Best regards