On Apr 13 11:00, Christoph Weise wrote:
>
>
> > The problem is the call to shmget:
> >
> > #undef PAGESIZE
> > #define PAGESIZE 512
> > shmid = shmget(key, PAGESIZE, IPC_ALLOC);
> >
> > Since you're requesting only 512 bytes, the shared memory segment the
> > following shmat call returns
> The problem is the call to shmget:
>
> #undef PAGESIZE
> #define PAGESIZE 512
> shmid = shmget(key, PAGESIZE, IPC_ALLOC);
>
> Since you're requesting only 512 bytes, the shared memory segment the
> following shmat call returns is only 4K. The shmget call should request
> as much memor
On Apr 12 13:23, Corinna Vinschen wrote:
> On Apr 11 20:25, Christoph Weise wrote:
> > Please see below, I provide minimal C code for three separate
> > executables, one creates the shm section, another finds it, the third
> > removes it. I include also a bash test script that executes the
> > rout
On Apr 11 20:25, Christoph Weise wrote:
> Please see below, I provide minimal C code for three separate
> executables, one creates the shm section, another finds it, the third
> removes it. I include also a bash test script that executes the
> routines in order.
Thanks,
> Please beware as I remov
>On Apr 10 22:20, Christoph Weise wrote:
>> >PAGESIZE on Cygwin is not 1024, and the right value to use for
>> >XSI SHM is SHMLBA (== 64K on Cygwin)
>>
>> Setting PAGESIZE to SHMLBA creates problems elsewhere in the program
>> (then PAGESIZE is too big for the program to handle, a problem I have
>
On Apr 10 22:20, Christoph Weise wrote:
> >PAGESIZE on Cygwin is not 1024, and the right value to use for
> >XSI SHM is SHMLBA (== 64K on Cygwin)
>
> Setting PAGESIZE to SHMLBA creates problems elsewhere in the program
> (then PAGESIZE is too big for the program to handle, a problem I have
> yet t
Thanks for your help, your suggestions have helped me greatly but I'm still
stuck.
>> I am porting to cygwin a program in FORTRAN/C that relies on C
>> routines to create a shared memory region allowing various independent
>> FORTRAN routines to share data. Program compiles and runs ok on L
On Apr 8 11:49, Christoph Weise wrote:
> I am porting to cygwin a program in FORTRAN/C that relies on C
> routines to create a shared memory region allowing various independent
> FORTRAN routines to share data. Program compiles and runs ok on Linux
> with g77/gcc compilers. I am compiling on cygwi
On 4/8/2015 1:49 PM, Christoph Weise wrote:
I am porting to cygwin a program in FORTRAN/C that relies on C routines to
create a shared memory region allowing various independent FORTRAN routines to
share data. Program compiles and runs ok on Linux with g77/gcc compilers. I am
compiling on cy
I am porting to cygwin a program in FORTRAN/C that relies on C routines to
create a shared memory region allowing various independent FORTRAN routines to
share data. Program compiles and runs ok on Linux with g77/gcc compilers. I am
compiling on cygwin 1.7.33-2(0.280/5/3)with gfortran/gcc (4.8.3
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