Unfortunately, a HDD drive of the server was crashed and user database was vanished!! So all users need to re-register with the Online Solver. We recommend that users employ the same login ID if they once utilized the Online Solver.
We are sorry for the inconvenience.

Solving large-scale optimization problems requires a huge amount of computational power. The SDPARA on the parallel computer is a very useful tool for solving large-scale SDPs.
However, not so many users have and/or log on parallel computers. Users must download some source codes from the SDPA Web site and compile them by pre-determined procedures even if they have parallel environments. For that reason, we have developed a grid portal system for some software packages of the SDPA Family. We call the system the SDPA Online Solver. One can access it from the following Web site:

SDPA Online Solver

Users can easily use the SDPA, the SDPARA and the SDPARA-C without their own parallel computers. Users only have to prepare one Web client PC connected with the Internet. Here, we briefly explain how users log on the SDPA Online Solver and solve SDPs by using software packages.

1: Users register with the SDPA Online Solver. The system generates their ID and password, and returns them to users.
2: Users log on the system and upload the parameter file (if necessary) and the data file. Then, select several parameters such as the software package they want to use, the parallel computer, and the number of CPUs when they
use the SDPARA and the SDPARA-C.
3: Users push the execute button. After the execution of the software packages, they can download and browse the output file. They can also receive an e-mail to be informed that the execution of the software was completed.