Closed labarba closed 9 years ago
Do you still have a pdf copy of the book? I’d like to take a look at what he says about the test
On Jun 2, 2015, at 7:24 AM, Lorena A. Barba notifications@github.com wrote:
The example in Liu's book ran on a laptop with a 2.4 GHz Pentium IV CPU with 1 GB RAM, taking 730 minutes to complete the 49 iterations to converge to a tolerance of $10^{-4}$ using $p=15$, for 40 cells, 7500 panels each (300k total panels).
Why do you say that for 40 cells you need to use the coarser mesh of 2048 panels? I mean, he was running on a Pentium IV, surely we can match that on our machines??
— Reply to this email directly or view it on GitHub https://github.com/barbagroup/inexact-gmres/issues/6.
I believe there were issues with the local preconditioner and / or sparse matrix approach for the near-field that caused the memory issues. That’s my guess at least
On Jun 2, 2015, at 8:39 AM, Simon Layton slayton58@gmail.com wrote:
Do you still have a pdf copy of the book? I’d like to take a look at what he says about the test
On Jun 2, 2015, at 7:24 AM, Lorena A. Barba <notifications@github.com mailto:notifications@github.com> wrote:
The example in Liu's book ran on a laptop with a 2.4 GHz Pentium IV CPU with 1 GB RAM, taking 730 minutes to complete the 49 iterations to converge to a tolerance of $10^{-4}$ using $p=15$, for 40 cells, 7500 panels each (300k total panels).
Why do you say that for 40 cells you need to use the coarser mesh of 2048 panels? I mean, he was running on a Pentium IV, surely we can match that on our machines??
— Reply to this email directly or view it on GitHub https://github.com/barbagroup/inexact-gmres/issues/6.
That's not very helpful. I see no option but to avoid making any comparisons with Liu's example.
The example in Liu's book ran on a laptop with a 2.4 GHz Pentium IV CPU with 1 GB RAM, taking 730 minutes to complete the 49 iterations to converge to a tolerance of $10^{-4}$ using $p=15$, for 40 cells, 7500 panels each (300k total panels).
Why do you say that for 40 cells you need to use the coarser mesh of 2048 panels? I mean, he was running on a Pentium IV, surely we can match that on our machines??