The TDDD56 Multicore and GPU programming course is split in two separate but not independent parts, one about Multicore CPU programming, and the other on GPU programming. The CPU material is on the official course page.
Both parts are vital knowledge for being an advanced modern software developer. Computers are increasingly multicore and distributed. The art of programming can no longer be limited to a single CPU thread, or even a single type of hardware. And that is why this course covers both CPU and GPU. Neither should be ignored.
About having a course in two parts like this: With different teachers on each part, of course they will feel rather different, but you should know that we are making efforts to connect the two so the course feels like a whole. In particular, I work towards more focus on sorting on the GPU, and the sorting competition covers both CPU and GPU sorting. Another connection is intentional similarities between lab 1 and 4. Linking it together is not a trivial task, and a work in progress, but you should know that we are not ignoring it.