Fix corner cases in distributed

added MPI label

approved this merge request

all examples fail on my side :

./example_lap1
  Matrix type:  Symmetric
  Arithmetic:   Double
  Format:       IJV
  N:            1000
  nnz:          3700
  || A ||_f:    1.377792e+03
spmCheckAxb: ldx0 must be >= max( 1, spm->nexp )

Update CONTRIBUTING.md and fix link to LICENSE.md in this PR ?

added 3 commits

• 8c995bd6 - Fix leading dimension issue that must be larger than 0
• 66bf31b9 - Fix corner case on get_distribution
• 9456e729 - Fix coverity warning

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  Matrix type:  Symmetric
  Arithmetic:   Double
  Format:       CSC
  N:            1
  nnz:          1
  || A ||_f:    0.000000e+00
   || A ||_1                                               0.000000e+00
   max(|| b_i ||_oo)                                       0.000000e+00
   max(|| x_i ||_oo)                                       6.651351e-01
   || b_0 - A x_0 ||_2 / || b_0 ||_2                       nan
   || b_0 - A x_0 ||_1                                     nan
   || b_0 - A x_0 ||_1 / (||A||_1 * ||x_0||_oo * eps)      nan (FAILED)
   max(|| b_i - A x_i ||_2 / || b_i ||_2)                  0.000000e+00
   max(|| b_i - A x_i ||_1)                                0.000000e+00
   max(|| b_i - A x_i ||_1 / (||A||_1 * ||x_i||_oo * eps)) 0.000000e+00 (FAILED)

A laplacian 1x1x1 (or 1) is a null matrix ?

approved this merge request

added 1 commit

• eb1e9ed0 - Fix corner case in C examples

Compare with previous version

resolved all threads

merged

mentioned in commit 2ac79a4d