3 - SPM/Dist_basic_routines

Make sure some of the basic routines are working with distributed matrices, or prevent issue by returning an error:

• SpmPrint
• Spm2Dense
• SpmConvert
• SpmGenFakeValues

Some of these routines have also been largely factorized to try to simplify them.

src/z_spm_2dense.c

@@ -447,8 +447,6 @@ z_spmIJV2dense( const spmatrix_t *spm )
     memset( A, 0, lda * lda * sizeof(spm_complex64_t));
 
     baseval = spmFindBase( spm );
-    i = 0;
-    j = 0;
 
     colptr = spm->colptr;
     rowptr = spm->rowptr;