diff options
Diffstat (limited to 'doc/modeling-method.md')
| -rw-r--r-- | doc/modeling-method.md | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/doc/modeling-method.md b/doc/modeling-method.md index 7a4c635..057f7ee 100644 --- a/doc/modeling-method.md +++ b/doc/modeling-method.md @@ -43,8 +43,8 @@ All of these are valid regression model trees. ### Related Options * `--force-tree` builds a tree structure even if dfatool's heuristic indicates that no non-integer parameter affects the modeled performance attribute. -* `DFATOOL_DTREE_IGNORE_IRRELEVANT_PARAMS=0` disables the relevant parameter detection heuristic when building the tree structure. By default, irrelevant parameters cannot end up as decision nodes. -* `DFATOOL_FIT_LINEAR_ONLY=1` makes RMT behave more like LMT by only considering linear functions in leaf nodes. +* `DFATOOL_RMT_IGNORE_IRRELEVANT_PARAMS=0` disables the relevant parameter detection heuristic when building the tree structure. By default, irrelevant parameters cannot end up as decision nodes. +* `DFATOOL_SUBMODEL=fol` makes RMT only consider linear functions (a + bx) in regression analysis. Useful for comparison with LMT / M5. * `DFATOOL_PARAM_CATEGORICAL_TO_SCALAR=1` * `DFATOOL_ULS_SKIP_CODEPENDENT_CHECK=1` * `DFATOOL_REGRESSION_SAFE_FUNCTIONS=1` @@ -60,7 +60,7 @@ You should also specify `DFATOOL_XGB_N_ESTIMATORS`, `DFATOOL_XGB_MAX_DEPTH`, and ## Least-Squares Regression -If dfatool determines that there is no need for a tree structure, or if `DFATOOL_DTREE_ENABLED=0` has beenset, it will go straight to least-squares regression. +If dfatool determines that there is no need for a tree structure, or if `DFATOOL_RMT_ENABLED=0` has beenset, it will go straight to least-squares regression. By default, it still utilizes the RMT/ULS algorithms to find and fit a suitable function template. If needed, `--function-override` can be used to set a function template manually. For instance, in order to specify that NMC DPU allocation latency is a function of the number of DPUs (and nothing else), ue `--function-override 'NMC reconfiguration:latency_dpu_alloc_us:regression_arg(0) + regression_arg(1) * parameter(n_dpus)'` |