RECENGINE Procedure

PROC RECENGINE Statement

PROC RECENGINE METHOD=method<options>;

The PROC RECENGINE statement invokes the procedure. Table 1 summarizes the options available in this statement.

Table 1: PROC RECENGINE Statement Options

Option	Description
Data Table Options
DATA=	Specifies the input data table
ITEMMODEL=	Specifies the output table in which to save the item model output parameters
OUTMODEL=	Specifies the output table in which to save the model output parameters
USERMODEL=	Specifies the output table in which to save the user model output parameters
Other Options
METHOD=	Specifies the recommender system method to be used
NTHREADS=	Specifies the number of threads to use on each computation node

You must specify the following option:

METHOD=method

specifies the recommender system method to use. You can specify the following methods:

BPR: uses the Bayesian personalized ranking (BPR) method. For more information about this method, see the section Bayesian Personalized Ranking (BPR).
DTOS: uses the data translation with optimal step size (DTOS) method. For more information about this method, see the section Data Translation with Optimal Step Size (DTOS).
KNN: uses a sparse k-nearest neighbors (KNN) method. For more information about this method, see the section Details: RECENGINE Procedure.

You can also specify the following options:

DATA=libref.data-table

names the input data table for PROC RECENGINE to use. The default is the most recently created data table. libref.data-table is a two-level name, where

libref: refers to a collection of information that is defined in the LIBNAME statement and includes the library, which includes a path to the data. For more information about libref, see the section Using SAS Viya Workbench.
data-table: specifies the name of the input data table.

ITEMMODEL=libref.data-table

specifies the name of the output table that contains the model parameters for items. libref.data-table is a two-level name, where libref refers to the library, and data-table specifies the name of the output data table. For more information about this two-level name, see the DATA= option and the section Using SAS Viya Workbench.

NGPUS=number-of-gpus

specifies the number of GPUs to use in order to accelerate computation on at least one node, where number-of-gpus can be 0 or 1. Although it is not required, it is recommended that all nodes have equivalent or similar GPU resources to achieve maximum performance. This option is available when METHOD=DTOS.

By default, NGPUS=0.

NTHREADS=number-of-threads

specifies the number of threads per computation node. The default value is the number of threads available per computation node.

OUTMODEL=libref.data-table

specifies the name of the output table that contains the model outputs. libref.data-table is a two-level name, where libref refers to the library, and data-table specifies the name of the output data table. For more information about this two-level name, see the DATA= option and the section Using SAS Viya Workbench.

USERMODEL=libref.data-table

specifies the name of the output table that contains the model parameters for users. libref.data-table is a two-level name, where libref refers to the library, and data-table specifies the name of the output data table. For more information about this two-level name, see the DATA= option and the section Using SAS Viya Workbench.

Last updated: July 02, 2026