Denodo Virtual DataPort can Connect, Consume and Combine both Multidimensional and Tabular mode of SSAS. I created a datasource to connect to SSAS as explained on the Knowledge Base article [SSAS as data source](https://community.denodo.com/kb/view/document/SSAS%20as%20data%20source?category=Data+Sources) and [Multidimensional Database Sources
](https://community.denodo.com/docs/html/browse/7.0/vdp/administration/creating_data_sources_and_base_views/multidimensional_database_sources/multidimensional_database_sources#multidimensional-database-sources) section of Virtual DataPort Administration Guide.
The Tabular Data Model acted similar to a table with column group and creates a single base view with the columns selected from the individual tables on the Tabular Data Model.
Hope this helps!