[pierrealexandre]

If I understand Table 1 correctly, it shows that with ICC a block size of 8 with 4000x4000 matrices gives roughly a speedup factor of 2 (~10.53 / 6.38). The unit is not clearly stated but it looks like a bigger number means a better "performance" ie a faster program.

[wallacoloo]

Oh, indeed. I believe I was not reading the table as intended.