Level 3: matrix-matrix subroutines include:

SGEMM, DGEMM, CGEMM, ZGEMM |
Perform matrix-matrix operations on general matrices. |

SSYMM, DSYMM, CSYMM, ZSYMM |
Perform matrix-matrix operations on symmetrical matrices. |

CHEMM, ZHEMM |
Perform matrix-matrix operations on Hermitian matrices. |

SSYRK, DSYRK, CSYRK, ZSYRK |
Perform symmetric rank k operations. |

CHERK, ZHERK |
Perform Hermitian rank k operations. |

SSYR2K, DSYR2K, CSYR2K, ZSYR2K |
Perform symmetric rank 2k operations. |

CHER2K, ZHER2K |
Perform Hermitian rank 2k operations. |

STRMM, DTRMM, CTRMM, ZTRMM, |
Perform matrix-matrix operations on triangular matrixes. |

STRSM, DTRSM, CTRSM, ZTRSM |
Solve certain matrix equations. |