Hi,

I am trying to test the speed of my code on a Intel pc with Winxp and compare with  gcc. But I must use fftw for my code to run. I currently use a precompiled version of fttw I pulled from the net which has been produced with the Intel icc-7.1/O3/G7. This works fine with the gcc-compiled (mingw) code. Would it be ok to try to do the same with the dmc?

I am asking this because on trying compiling and linking with dmc I get the following - note that I have edited the sc.ini file and set the appropriate paths:


C:\dm\bin>dmc main
link main,,,user32+kernel32/noi;
OPTLINK (R) for Win32  Release 7.50B1
Copyright (C) Digital Mars 1989 - 2001  All Rights Reserved

main.obj(main)
Error 42: Symbol Undefined _fftw_execute
main.obj(main)
Error 42: Symbol Undefined _fftw_execute_dft_r2c
main.obj(main)
Error 42: Symbol Undefined _fftw_execute_dft_c2r
main.obj(main)
Error 42: Symbol Undefined _fftw_plan_many_r2r
main.obj(main)
Error 42: Symbol Undefined _fftw_plan_dft_c2r_2d
main.obj(main)
Error 42: Symbol Undefined _fftw_plan_dft_r2c_2d
main.obj(main)
Error 42: Symbol Undefined _fftw_malloc

--- errorlevel 7


What I am doing wrong?
Thanks.
--

Dont@like.spam.thanks wrote:

> C:\dm\bin>dmc main
> 
> 
> What I am doing wrong?

You can create a .lib file from the .dll and link to that.

To create the .lib:
implib /S ffw.lib libfftw3-3.dll

And then use the lib when you compile:
dmc main ffw.lib

-- 
Absolutely not the best homepage on the net:
http://home20.inet.tele.dk/midgaard
But it's mine - Bertel

In article <dtqpk5$2ljg$1@digitaldaemon.com>, Bertel Brander says...

Many thanks for the prompt response. I actually were using a .lib library that I had downloaded together with the .dll.

I was specifying in the sc.in LIB="%@P%\..\lib";"%@P%\..\mfc\lib";%LIB%;C:\FFTW;C:\dm\bin\fftw3.lib

Anyway. I will try to recreate the .lib file. I will have to download implib from somewhere ...
--




>
>Dont@like.spam.thanks wrote:
>
>> C:\dm\bin>dmc main
>> 
>> 
>> What I am doing wrong?
>
>You can create a .lib file from the .dll and link to that.
>
>To create the .lib:
>implib /S ffw.lib libfftw3-3.dll
>
>And then use the lib when you compile:
>dmc main ffw.lib
>
>-- 
>Absolutely not the best homepage on the net:
>http://home20.inet.tele.dk/midgaard
>But it's mine - Bertel

In article <dtqpk5$2ljg$1@digitaldaemon.com>, Bertel Brander says...

Downloaded impbin but it asks for DUMPBIN. Download MS Visual C++ installed but DUMPBIN nowhere to be seen (free version). Any ideas?
--

>
>Dont@like.spam.thanks wrote:
>
>> C:\dm\bin>dmc main
>> 
>> 
>> What I am doing wrong?
>
>You can create a .lib file from the .dll and link to that.
>
>To create the .lib:
>implib /S ffw.lib libfftw3-3.dll
>
>And then use the lib when you compile:
>dmc main ffw.lib
>
>-- 
>Absolutely not the best homepage on the net:
>http://home20.inet.tele.dk/midgaard
>But it's mine - Bertel

Me Yet Again wrote:
> In article <dtqpk5$2ljg$1@digitaldaemon.com>, Bertel Brander says...
> 
> Downloaded impbin but it asks for DUMPBIN. Download MS Visual C++
> installed but DUMPBIN nowhere to be seen (free version). Any ideas?

In the version of ffw I downloaded there were no .lib's only .dll
and the header.

You have to use implib.exe to create the .lib It is a part of
the standard package.

In sc.ini you specify the path's to libraries, not the libraries
themselves, as far as I know.

So you must specify the .lib on the command line when compiling:
dmc main ffw.lib

-- 
Absolutely not the best homepage on the net:
http://home20.inet.tele.dk/midgaard
But it's mine - Bertel