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The table below compares GEMPACK 11.4 compile times (LTG) and model runtimes with those for the previous 11.3 version. We list results for GTAP (which is LU-bound) and MMRF (where non-LU operations dominate runtime). Results are shown for the Intel, GFortran and Lahey/Fujitsu compilers, in each of 32-bit and -bit versions where supported. Runtimes are reported for both GEMSIM and Tablo-generated exes.
To prepare a model for automatic homogeneity testing the user: Specifies the VPQType (Value, Price, Quantity, None or Unspecified) of variables. Several methods are provided which minimize the effort required by the user. Specifies the original level (ORIG_LEVEL=...) for ordinary change variables.
ViewHAR now displays SL4 solution files in a more user-friendly way. Unlike in ViewSOL, you can see values for variables with 4 or more dimensions. The Contents page contains a "<-100" column which counts how many values changed sign, and there is a way to track down which elements of huge variables changed sign. See Opening SL4 solution files [Dec 2009]
Automatic Homogeneity Testing Most CGE models are homogeneous degree zero in prices and quantities. The automatic homogeneity testing is one method for checking the homogeneity, real or nominal, of a model.
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