Documentation du code de simulation numérique SUNFLUIDH

This data setup defines the domain size, the grid data, the domain decomposition features (MPI parallelisation characteristics : number of MPI processes bounded to subdomains and how they are distributed over the domain) and the number of threads also used to split the domain (OpenMP parallelisation).

• Type : integer value
• This option selects the type of geometry configuration used :
  • 0 : Cartesian geometry
    • 1: Cylindrical geometry. The axis is oriented along the K-direction. The coordinate system is $r(i), \theta(j) , z(k)$
    • 2: Cylindrical geometry. The axis is oriented along the I-direction. The coordinate system is $r(j), \theta(k) , z(i)$
    • 3: Cylindrical geometry. The axis is oriented along the J-direction. The coordinate system is $r(k),\theta(i),z(j)$

• Type : real value
• Origin coordinate along the I-direction.

• Type : real value
• Origin coordinate along the J-direction.

• Type : real value
• Origin coordinate along the K-direction.

• Type : real value
• End coordinate along the I-direction.

• Type : real value
• End coordinate along the J-direction.

• Type : real value
• End coordinate along the K-direction.

• Type : integer value
• Number of cells along the I-direction, excluding the ghost-cells)

• Type : integer value
• Number of cells along the J-direction, excluding the ghost-cells)

• Type : integer value
• Number of cells along the K-direction, excluding the ghost-cells)

• integer value
• Number of Threads for OpenMP parallelization

• Type : Boolean value
• Select the MPI cartesian topology for the domain decomposition method (same number of subdomains along a given direction)
• ==== MPI_Topology_Topology ====
• Type : Boolean value
• Select the MPI graphic topology for the domain decomposition method (the number of subdomain along a given direction is variable)

• Type : integer value
• Total number of MPI processes used in the domain decomposition method

• Type : integer value
• Number of MPI processes along the I-direction (maximum number for the graphic topology)

• Type : integer value
• Number of MPI processes along the J-direction (maximum number for the graphic topology)

• Type : integer value
• Number of MPI processes along the K-direction (maximum number for the graphic topology)

• Type : boolean value
• if .true., the mesh size is regular along each direction and the gris is directly built by the code.
• If .false., the grid is irrgular and the cell distribution is read in the specific files maillx_xxxxx.d, mailly_xxxxx.d and maillz_xxxxx.d (xxxxx corresponds to the subdomain/MPI-process number if the MPI domain-decomposition is used). These files are created from the mesh builder named meshgen.x.