ManagedCollisionEmbeddingBagCollectionSharder cannot support CPU

[YuandongXu-hotstar]

Does ManagedCollisionEmbeddingBagCollectionSharder only support cuda？
I want to use ManagedCollisionEmbeddingBagCollection in CPU only environment.
But I cannot resolve the "RuntimeError: No available sharding type and compute kernel combination after applying user provided constraints for XXX"
What should I do?

for shard types that each sharder supports in CPU device type:
EmbeddingBagCollectionSharder: ['data_parallel', 'table_wise', 'column_wise', 'table_column_wise']
FeatureProcessedEmbeddingBagCollectionSharder: ['data_parallel', 'table_wise', 'column_wise', 'table_column_wise']
EmbeddingCollectionSharder: ['data_parallel', 'table_wise', 'column_wise', 'row_wise']
FusedEmbeddingBagCollectionSharder: ['data_parallel', 'table_wise', 'column_wise', 'table_column_wise']
QuantEmbeddingBagCollectionSharder: ['table_wise', 'row_wise', 'column_wise']
QuantEmbeddingCollectionSharder: ['table_wise', 'row_wise', 'column_wise']
ManagedCollisionEmbeddingBagCollectionSharder: [] ----------------------> this is empty list
ManagedCollisionEmbeddingCollectionSharder: ['row_wise']
QuantManagedCollisionEmbeddingCollectionSharder: ['row_wise']

Can I use EmbeddingBagCollectionSharder when I use ManagedCollisionEmbeddingBagCollection for the embeddings? What would be the behavior?

[iamzainhuda]

@kausv could you take a look at this?

[kausv]

Ack starting the work on this