IC3 format V2 and V3

restart header

• UGP_IO_MAGIC_NUMBER to test byte swap (little endian, big endian)
• version

section headers

order of sections is arbitrary and can be one of the following

• UGP_IO_NO_FA_CV_NOOFA_COUNTS: first integers are
• no_count
• fa_count
• cv_count
• noofa_count
• UGP_IO_NO_CHECK
• UGP_IO_FA_CHECK
• UGP_IO_CV_CHECK
• UGP_IO_NOOFA_I_AND_V: CSR connectivity of face2node
• UGP_IO_CVOFA
• UGP_IO_FA_ZONE
• UGP_IO_CV_PART
• UGP_IO_X_NO
• UGP_IO_DATA
• UGP_IO_I0
• UGP_IO_D0
• UGP_IO_FA_II1
• UGP_IO_FA_D1
• UGP_IO_FA_D3
• UGP_IO_CV_II1
• UGP_IO_CV_D1
• UGP_IO_CV_D3
• UGP_IO_CV_D33: cell based and double type 3x3 tensor data
• UGP_IO_NO_II1: node based and int scalar data
• UGP_IO_NO_D1: node based and double scalar data
• UGP_IO_NO_D3: node based and double vector data
• UGP_IO_EOF: end of file

mesh data

order of sections is arbitrary

NOOFA face2node connectivity

• header with number of nodes, faces and cells

parameters

variables and fieds

Though the format can be read in any order. The current (v2 and v3) order in IC3 code is

• scalars
• double float: nodes, faces, and cells
• long int: nodes, faces, and cells
• vectors
• double float: nodes, faces, and cells
• tensors
• double float: cells only