[mpich-discuss] question regarding compiling/linking under MingW (MPICH2 1.08)

Sun Jan 4 17:46:25 CST 2009

Hi,

Thanks a lot for your reply. 
I just read an infinitely long post that discusses whether __int64 is dead, and realized that I get into something taboo regarding ms specific vs c99. 
There is a lot of discussion of aethetics there, ..., to no avail though.

Just for the sake of the problem, I used the binary distribution for Win64. Below is my MPICH2/lib  
$ ls /c/MPICH2/lib/TraceInput.lib  fmpe.lib     irlog2rlog.lib  mpi.libcxx.lib         fmpich2.lib  mpe.lib         rlog.lib

In the win32 version, I did see libmpi.a in the same folder. But I tried removing that file, and was able to compile and link.

My last effort was to use   
typedef long long MPI_Aint
and go back to mingw+gcc3.4.5+vista64, and the error message was:

$ gcc -I /c/MPICH2/include/ test.c -L /c/MPICH2/lib/ -lmpi  C:/Users/ting/AppData/Local/Temp/cciBiEaP.o:test.c:(.text+0x38): undefined reference to `MPI_Init'C:/Users/ting/AppData/Local/Temp/cciBiEaP.o:test.c:(.text+0x4b): undefined reference to `MPI_Comm_rank'collect2: ld returned 1 exit status

As a side note, I tried to compile one from source using mingw under Win64, 
but it was complaining about missing poll() function etc. Somebody complained in a MingW list, but a mingw person believes that MPI under windows shouldn't
use poll() anyways. I tried to add some other code downloaded from the internet that fakes a poll(), then I got a problem with threads. And I realized that the job is
beyond a novice like me.

Thanks again for your help,
hope some day this problem will disappear. But maybe the mingw idea was wrong -- a minimal set of unix functions with native winxx impl. Lovely little piece that brings 
unix to the dull windows command line though.

T.
> Date: Sun, 4 Jan 2009 20:21:42 +0100> From: ddkrause at uni-bonn.de> To: mpich-discuss at mcs.anl.gov> Subject: Re: [mpich-discuss] question regarding compiling/linking under MingW (MPICH2 1.08)> > Hi,> > ting lei wrote:> > *Hi, Dorian*> >> > Thanks a lot for your prompt reply.> > Your command line> > > gcc -I /c/MPICH2/include/ test.c -L/c/MPICH2/lib/ -lmpi> > solves the first problem perfectly on win32.> > Good to hear.> > >> > On Win64, I see the following from line 333 onwards about MPI_Aint> > "> > /* Definitions that are determined by configure. */> > typedef __int64 MPI_Aint;> > typedef int MPI_Fint;> > #define MPI_AINT_FMT_DEC_SPEC "%I64d"> > #define MPI_AINT_FMT_HEX_SPEC "%I64x"> > "> > It seems that configure made a choice of __int64 for the Win64 package > > instead of long under linux. Any idea how this might be solved?> > I have also attached the output with the -E option in the attachment > > err.txt for your reference.> > BTW, I tried to manually change> > typedef __int64 MPI_Aint;> > to> > typedef long MPI_Aint;> > and then, I got:> > gcc -I /c/MPICH2/include/ test.c -L /c/MPICH2/lib/ -lmpi > > test.c: In function 'main':> > test.c:15: warning: incompatible implicit declaration of built-in > > function 'printf'> > C:/Users/ting/AppData/Local/Temp/ccsAr9gj.o:test.c:(.text+0x22): > > undefined reference to `_MPI_Init'> > C:/Users/ting/AppData/Local/Temp/ccsAr9gj.o:test.c:(.text+0x36): > > undefined reference to `_MPI_Comm_rank'> > collect2: ld returned 1 exit status> >> > or the following for using g++:> >> > $ g++ -I /c/MPICH2/include/ test.c -L /c/MPICH2/lib/ -lmpi> > C:/Users/ting/AppData/Local/Temp/ccPO9opx.o:test.c:(.text+0x22): > > undefined reference to `_MPI_Init'> > C:/Users/ting/AppData/Local/Temp/ccPO9opx.o:test.c:(.text+0x36): > > undefined reference to `_MPI_Comm_rank'> > collect2: ld returned 1 exit status> >> > You said that you downloaded the binary distribution, correct? I have no > experiences with MPICH2 on Windows> but I would suspect that the libraries were build with Microsofts C/C++ > compiler cl and on Win64 the MingGW gcc> compiler and cl are not compatible. __int64 is a Microsoft specific > extension to C/C++ (http://msdn.microsoft.com/en-us/library/29dh1w7z.aspx).> Also it seems that gcc does some sort of name-mangling (adding an > underscore to the function name). This is rather strange> for a C compiler...> > Probably you'r right that its a gcc 4.3 issue. Maybe some else has more > insight into this.> > Interestingly he doesn't say that he can't find libmpi.a. Are you sure > that it is not there?> > BTW: typedef long MPI_Aint might be a problem because sizeof(long) = 4 > on Windows at least with the Microsoft compiler. Don't know what> gcc does in this situation.> > Dorian> > >> >> > Thanks again.> >> > T.> >> >> > > Date: Sun, 4 Jan 2009 18:29:23 +0100> > > From: ddkrause at uni-bonn.de> > > To: mpich-discuss at mcs.anl.gov> > > Subject: Re: [mpich-discuss] question regarding compiling/linking > > under MingW (MPICH2 1.08)> > >> > > Hi> > >> > > ting lei wrote:> > > > Hi,> > > >> > > > Sorry to bother all. I have some questions regarding using MPICH2 > > 1.08> > > > with MingW> > > >> > > > I tried compile MPICH2 1.08 on two different machines, and have met> > > > different problems. I was wondering if someone with a lot experience> > > > could help me out here. thanks in advance.> > > >> > > > 1) The most successful attempt was on a win32 platform, XPSP3 with> > > > MingW+gcc3.4.5> > > > The command line I used was:> > > > gcc -I /c/MPICH2/include/ -lmpi -L/c/MPICH2/lib/ test.c> > > > and I get the following error:> > > > C:/DOCUME~1/ting/LOCALS~1/Temp/cc40AD3K.o:test.c:(.text+0x38):> > > > undefined reference to `MPI_Init'> > > > C:/DOCUME~1/ting/LOCALS~1/Temp/cc40AD3K.o:test.c:(.text+0x4b):> > > > undefined reference to `MPI_Comm_rank'> > > > collect2: ld returned 1 exit status> > >> > > Could you try> > >> > > gcc -I /c/MPICH2/include/ test.c -L/c/MPICH2/lib/ -lmpi> > >> > > Since your testprogram depends on the mpi library you need to specify> > > the library after your program because the linker goes from left to > > right.> > > >> > > > It seems that the library file libmpi.a is corrected specified,> > > > because if I change it to -lmpi1 it will report> > > > c:\mingw\bin\..\lib\gcc\mingw32\3.4.5\..\..\..\..\mingw32\bin\ld.exe:> > > > cannot find -lmpi1> > > > collect2: ld returned 1 exit status> > > >> > > >> > > > 2) My less successful attempt was on a Win64 (Vista64) platform with> > > > MingW + gcc4.3:> > > > I tried installing the mpich2-1.0.8-win-x86-64.msi. but> > > > a) after the installation, I couldn't find libmpi.a in MPICH2\lib> > > > folder as I was able to in case 1).b) when I am compiling the toy > > test> > > > program, I get many errors like this:> > > >> > > > In file included from test.c:1:> > > > c:/MPICH2/include/mpi.h:334: error: expected '=', ',', ';', 'asm' or> > > > '__attribute__' before 'MPI_Aint'> > > >> > > > Is this a gcc4.x problem?> > >> > > Did you take a look at mpi.h line 334? On Linux I can see typedef long> > > MPI_Aint; . Could you compile with the -E flag to see the preprocessor> > > output? Maybe something is overwriting long?> > >> > > >> > > > Best> > > >> > > > T> > > >> > > >> > > > > > ------------------------------------------------------------------------> > > > From: jayesh at mcs.anl.gov> > > > To: leitingl at hotmail.com> > > > CC: mpich-discuss at mcs.anl.gov> > > > Subject: RE: [mpich-discuss] (no subject) - mingw> > > > Date: Tue, 2 Dec 2008 13:34:18 -0600> > > >> > > > Hi,> > > > You could try installing MPICH2 on windows (from the installer> > > > available at> > > > > > http://www.mcs.anl.gov/research/projects/mpich2/downloads/index.php?s=downloads) > >> > > > and compile your code and link with the gcc libs (*.a) provided with> > > > the installation (MPICH2\lib directory).> > > >> > > > Regards,> > > > Jayesh> > > >> > > > > > ------------------------------------------------------------------------> > > > *From:* mpich-discuss-bounces at mcs.anl.gov> > > > [mailto:mpich-discuss-bounces at mcs.anl.gov] *On Behalf Of *ting lei> > > > *Sent:* Tuesday, December 02, 2008 1:31 PM> > > > *To:* mpich-discuss at mcs.anl.gov> > > > *Subject:* [mpich-discuss] (no subject)> > > >> > > > Hi,> > > >> > > > This might be a newbie question.> > > > I see in this thread that people can compile MPICH2 with MingW. I > > tried that with MingW (gcc 4.3 and 3.4x) several times but> > > > I was never able to get past the ./configure step.> > > > /"I have compiled a C executable using the MPICH2 Windows > > libraries and //MinGW./"> > > > Could someone please give me some pointers how to compile such an > > executable?> > > > More specifically, do I have to compile MPICH2 itself from source > > using MinGW then use some program such as mpicc??> > > > or should I just compile a regular c program and run it with > > mpiexec.exe ?> > > > If I were to compile MPICH2 itself with MingW, what other packages > > do I need except the latest version of MingW?> > > >> > > >> > > > Many thanks for your help> > > >> > > >> > > >> > > >> > > > <http://clk.atdmt.com/MRT/go/127032869/direct/01/>> > > > > > ------------------------------------------------------------------------> > > > It’s the same Hotmail®. If by “same” you mean up to 70% faster. Get> > > > your account now.> > > > > > <http://windowslive.com/online/hotmail?ocid=TXT_TAGLM_WL_hotmail_acq_broad1_122008>> > >> >> > ------------------------------------------------------------------------> > Send e-mail faster without improving your typing skills. Get your > > Hotmail® account. > > <http://windowslive.com/online/hotmail?ocid=TXT_TAGLM_WL_hotmail_acq_speed_122008>> 
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