MatSTRUMPACKCompressionType

Compression used in the approximate sparse factorization solver MATSOLVERSTRUMPACK

Synopsis

typedef enum {
  MAT_STRUMPACK_COMPRESSION_TYPE_NONE,
  MAT_STRUMPACK_COMPRESSION_TYPE_HSS,
  MAT_STRUMPACK_COMPRESSION_TYPE_BLR,
  MAT_STRUMPACK_COMPRESSION_TYPE_HODLR,
  MAT_STRUMPACK_COMPRESSION_TYPE_BLR_HODLR,
  MAT_STRUMPACK_COMPRESSION_TYPE_ZFP_BLR_HODLR,
  MAT_STRUMPACK_COMPRESSION_TYPE_LOSSLESS,
  MAT_STRUMPACK_COMPRESSION_TYPE_LOSSY
} MatSTRUMPACKCompressionType;

Values

• MAT_STRUMPACK_COMPRESSION_TYPE_NONE - no compression, direct solver

• MAT_STRUMPACK_COMPRESSION_TYPE_HSS - hierarchically semi-separable

• MAT_STRUMPACK_COMPRESSION_TYPE_BLR - block low rank

• MAT_STRUMPACK_COMPRESSION_TYPE_HODLR - hierarchically off-diagonal low rank (requires ButterfyPACK support, configure with –download-butterflypack)

• MAT_STRUMPACK_COMPRESSION_TYPE_BLR_HODLR - hybrid of BLR and HODLR (requires ButterfyPACK support, configure with –download-butterflypack)

• MAT_STRUMPACK_COMPRESSION_TYPE_ZFP_BLR_HODLR - hybrid of lossy (ZFP), BLR and HODLR (requires ButterfyPACK and ZFP support, configure with –download-butterflypack –download-zfp)

• MAT_STRUMPACK_COMPRESSION_TYPE_LOSSLESS - lossless compression (requires ZFP support, configure with –download-zfp)

• MAT_STRUMPACK_COMPRESSION_TYPE_LOSSY - lossy compression (requires ZFP support, configure with –download-zfp)

See Also

Mat, MATSOLVERSTRUMPACK, MatGetFactor(), MatSTRUMPACKSetCompression()

Level

intermediate

Location

include/petscmat.h

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