Showing results for

- Intel Community
- Software Development SDKs and Libraries
- Intel® oneAPI Threading Building Blocks & Intel® Threading Building Blocks
- Is this the right Scenario for TBB ?

- Subscribe to RSS Feed
- Mark Topic as New
- Mark Topic as Read
- Float this Topic for Current User
- Bookmark
- Subscribe
- Mute
- Printer Friendly Page

Highlighted
##

ZVere

Beginner

- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Email to a Friend
- Report Inappropriate Content

06-29-2019
09:39 PM

8 Views

Is this the right Scenario for TBB ?

Hello,

I have to the develop the following project:

My data is divided into 12 **2D **complex float matrices.

Each complex matrix is then separated into 2 float matrices: Real and imaginary.

The reason for this: The signal processing contains also transpose.

There is no IPP transpose for complex float.

So I have 24 float matrices. Each row is consecutive in RAM.

On each marix I have to run FFT on each row, multiply each row by a constant vector (sample by sample) and then FFT on columns.

Before FFT on columns I will have to transpose because FFT on columns will be slower due to cache.

Now to my question:

Is it right to use TBB on each matrix in order to use all cores ?

I have 24 matrices but only 4 cores in my CPU.

Thank you,

Zvika

0 Replies

For more complete information about compiler optimizations, see our Optimization Notice.