Source for rough semolina in Hollywood area?
Try sami's on Fairfax just north of Clinton.
Also, you might be able to find it at either Elat Market on Pico and Wooster. Glatt mart next door may also carry it. They are both large Middle Eastern/Persian markets.
And one other to try that i can think of off the top of my head is Jon's on La Brea and Fountain. They have things that I've never seen in any other market.
8730 W Pico Blvd, Los Angeles, CA