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CheckFindMumps.c
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Created
Sat, Nov 16, 22:51
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1 KB
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text/x-c
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Mon, Nov 18, 22:51 (2 d)
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rAKA akantu
CheckFindMumps.c
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#include <stdio.h>
#if !defined(MUMPS_SEQ)
# include <mpi.h>
#endif
#define JOB_INIT -1
#define JOB_END -2
#define JOB_COMPLETE 6
#define USE_COMM_WORLD -987654
#define icntl(n) id.icntl[n - 1]
int main(int argc, char **argv) {
int n = 2;
int nz = 2;
int irn[2] = {1, 2};
int jcn[2] = {1, 2};
Real a[2];
Real rhs[2];
#if !defined(MUMPS_SEQ)
MPI_Init(&argc, &argv);
#endif
rhs[0] = 1.0; rhs[1]=4.0;
a[0] = 1.0; a[1] = 2.0;
id.job = JOB_INIT;
id.par = 1;
id.sym = 0;
#if !defined(MUMPS_SEQ)
id.comm_fortran = USE_COMM_WORLD;
#endif
mumps_c(&id);
// Default Scaling
icntl(8) = 77;
// Assembled matrix
icntl(5) = 0;
/// Default centralized dense second member
icntl(20) = 0;
icntl(21) = 0;
// automatic choice for analysis analysis
icntl(28) = 0;
// fully distributed
icntl(18) = 3;
id.n = n;
id.nz_loc = nz;
id.irn_loc = irn;
id.jcn_loc = jcn;
id.a_loc = a;
id.rhs = rhs;
icntl(1) = -1;
icntl(2) = -1;
icntl(3) = -1;
icntl(4) = 0;
id.job = JOB_COMPLETE;
mumps_c(&id);
id.job=JOB_END;
mumps_c(&id);
printf("Solution is : (%8.2f %8.2f)\n", rhs[0], rhs[1]);
return 0;
}
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