About Forum
Purpose
The rapid increase of computational power in recent years provides
the computational scientists a chance to realize what they
have been dreaming of long time. On the other hand, the machine
architecture is getting so complicated that it becomes harder and
harder to obtain the high sustained speed without improving the algorithms
and the implementation techniques. This difficult situation should
be tackled with close collaboration
between the computational scientist and the computer scientists
including the experts of numerical analyses.
The purpose of this forum is to promote active interactions between
both sides through the numerical analyses of the matrices: The computational
scientists provide the matrices and the related problems
which they confront in the current research.
It is likely that they can obtain useful information to solve the problems
from the computer scientists. If they are lucky enough, a complete
solution may be given.
On the other hand, the computer scientists have an opportunity to
know what kind of matrices are really relevant for the current computational
sciences. They are allowed to freely apply their ideas to solve the problems.
We wish this forum helps construct the fruitful relationship
between the computational and the computer sciences and
contributes to the future development of both sides.
For matrix users:
- Registration is required.
After a few days later you will receive a
confirmation email that your application
is approved, which provides your password
to access the download pages. This process is also required to submit
your matrices.
- To cite this forum in your publication,
use "CCS Matrix Forum, http://ccsmf.ccs.tsukuba.ac.jp/".
You are also required to inform us of the publication through this page. The
information should be useful for the matrix contributer.
How to submit your matrices:
- Registration is required.
After a few days later you will receive a
confirmation email that your application
is approved, which provides a password
to access your upload page.
This password is also valid to access the download pages.
- Prepare your matrices in the Matrix Market format.
For example, suppose your matrix consists of only real numbers:
| 5.29 | 0 | 4 | 0 |
| 0 | −9 | −0.00178 | 0 |
| 105.1 | 2 | 0 | 0.72 |
| 0 | 0 | 0 | −41.3 |
the required data format is
#Rows, #Cols and #Nonzeros must be given in the first line.
For the time being, we accept only text file format compressed
by gzip.
If your matrix contains complex numbers:
| (5.29, −0.021) | 0 | 4 | 0 |
| 0 | (−9, 5) | (−0.00178, 530.2) | 0 |
| 105.1 | (2, 0.43) | 0 | 0.72 |
| 0 | 0 | 0 | (−41.3, −4) |
the required data format is
- Send the submission form which inquires
fundamental properties of your matrices.
The submission form should be prepared for each matrix.
It is highly recommended that two or three sizes of matrices are presented.
Smaller sizes of matrices are extremely helpful in early stage
of numerical studies.
- Once your submission is approved,
you will receive an email which informs that
your upload page is open.
It is preferable to provide a brief note to describe the problem types in detail.
The size of the upload file must be less than 100MB.
In case that the file size is more than 100MB,
we can discuss an appropriate way to transfer your file.