CFD Online Discussion Forums - Does OS matters?Why?

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Does OS matter? Why?

The program(UDF) is complied successfully under Windows but doesn't work under Linux(Ubuntu 10.10.64bit). Why does this happen? Thanks!

Code:

#include<stdio.h>

#include<stdlib.h>

#include<time.h>

#include<udf.h>

#include<math.h>

#define K 4 

#define mu 2.6 

#define sigma 8.0 

#define PI 3.1416926

#define maxi 10000000

float gauss(void)

{

    float tmp; 

    float u;

    float v;

    //float mu; // the expected value of Gauss Distrubution

    tmp=0;

    srand((unsigned)time(NULL));

    

    while(mu-2>tmp||tmp>mu+2){

        u=rand()*1.0/RAND_MAX;

        v=rand()*1.0/RAND_MAX;

        tmp=sqrt(-2*log(u))*cos(2*PI*v)*sigma+mu;

    }

    return tmp;

}

DEFINE_INIT(my_init_function, domain)

{

    cell_t c;

    Thread *t;

    int i; 

    int j; 

    int cnum =14160; 

    float *radius[maxi][K];

    j=0;

    thread_loop_c(t,domain)

    {

        for(i=0;i<K;i++)

            *radius[j][i]=gauss();

        j++;

    }

}

Have you checked if your Linux version contains all the required compilers and files ? Like for example "gcc" ?

Do

DoHander, thanks for your attention. I check the problem again and find it's the style of comment that matters. In Fluent, you should use "/* */" to comment the codes instead of "//".
The Fluent uses cc as the compiler. But cc supports "//" comment style. Then the problem is due to parameters passed to cc.

Code:

cc -fpic -shared -ansi -Wall -m32 -O     -I/opt/Fluent.Inc/fluent6.3.26/`expr \`pwd\` : '.*/\(.*\)/[23].*'`/`basename \`pwd\`` -I/opt/Fluent.Inc/fluent6.3.26/src -I/opt/Fluent.Inc/fluent6.3.26/cortex/src -I/opt/Fluent.Inc/fluent6.3.26/client/src -I/opt/Fluent.Inc/fluent6.3.26/tgrid/src -I/opt/Fluent.Inc/fluent6.3.26/multiport/src -I. -c my_init.func.c