On SLM usage with multi work groups

[GHGmc2]

Take SIMD8 as an example, the max number of work groups on a DualSubSlice(DSS) is: (16EU * 8 Thread * SIMD8 / wg_size 512) = 2.

Say a DSS has 64KB SLM, and a workgroup needs 40KB SLM. Does the runtime know the max number of workgroups can be scheduled on an DSS is 1 (because 40 *2 > 64), or the developer must make sure not to use SLM size larger than 32KB for one workgroup on the application side?