[Matrix]: always lazy eval inner prod wide in block_matrix.
[Matrix]: always lazy eval inner prod wide in block_matrix.

icoming/FlashX,flashxio/FlashX,icoming/FlashX,flashxio/FlashX,flashxio/FlashX,flashxio/FlashX,flashxio/FlashX,icoming/FlashX,flashxio/FlashX,icoming/FlashX,icoming/FlashX