problem linking mkl to dft

juan_martinez — Sat, 16 Feb 2008 07:27:08 GMT

hi!

I am new in the stuff of the intel fortran compiler, I work in beam prpagation and need tu use Fourier Transform. I installed the fortran compiler 10.1.008 and the imkl 10.0.1.014 and read the examples of the refence manual for the imkl I made this program:

program fft

! Fortran example.
! 1D complex to complex, and real to conjugate even

USE MKL_DFTI
Complex :: X(100)
Real :: Y(34),del,x1
type(DFTI_DESCRIPTOR),POINTER ::My_Desc1_Handle,My_Desc2_Handle
Integer :: Status,i,j,n

pi=3.1416
n=100
open(unit=3,file='graficos.d')
del=2*pi/float(n)

do i=0,n-1
x1=-pi+i*del
X(i+1)=exp(-x1**2)
write(3,*)x1," ",X(i)
enddo

!...put input data into X(1),...,X(32); Y(1),...,Y(32)
! Perform a complex to complex transform

Status = DftiCreateDescriptor(My_Desc1_Handle,DFTI_SINGLE,DFTI
+_COMPLEX,1,32)
Status = DftiCommitDescriptor( My_Desc1_Handle )
Status = DftiComputeForward( My_Desc1_Handle, X )
Status = DftiFreeDescriptor(My_Desc1_Handle)
! result is given by {X(1),X(2),...,X(32)}

! Perform a real to complex conjugate even transform

! Status = DftiCreateDescriptor(My_Desc2_Handle, DFTI_SINGLE,DFTI
! +_REAL, 1, 32)
! Status = DftiCommitDescriptor(My_Desc2_Handle)
! Status = DftiComputeForward(My_Desc2_Handle, Y)
! Status = DftiFreeDescriptor(My_Desc2_Handle)

! result is given in CCS format.

END

And I read the user guide and Imade this compilation line:

ifort -o exec ejemplo1.f -L $/opt/intel/mkl/10.0.1.014/lib/32/ -I $/opt/intel/mkl/10.0.1.014/include/ -lmkl_ia32 -lguide -lpthread

And then the machine shows this errors

fortcom: Error: ejemplo1.f, line 7: Error in opening the compiled module file. Check INCLUDE paths. [MKL_DFTI]
USE MKL_DFTI
----------^
fortcom: Error: ejemplo1.f, line 10: This derived type name has not been declared. [DFTI_DESCRIPTOR]
type(DFTI_DESCRIPTOR),POINTER ::My_Desc1_Handle,My_Desc2_Handle
-----------^
compilation aborted for ejemplo1.f (code 1)

I don't know what happen here, if someone can help me say me where is the error, in the program? in the compilation line?

My OS is penSUSE 10.3, 32 bits, i386

Re: problem linking mkl to dft

Tabrez_Ali — Sat, 16 Feb 2008 14:26:57 GMT

You have to compile the module first. The source file is probably provided in /opt/intel/mkl/10.0.1.0.14/include as mkl_dfti.f90 or something similar

Also link using -L/opt/intel/mkl/10.0.1.0.14/lib/32 -lmkl_ia32 -lguide etc. etc.

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problem linking mkl to dft

Re: problem linking mkl to dft