The "Research and Development of International Matrix-Solver Prediction System (REDIMPS)" project aimed at
improving the TLSE sparse linear algebra expert website by establishing an international grid computing
environment between Japan and France. To help users in identifying the best solver or sparse linear algebra tool for
their problems, we have developed an interoperable environment between French and Japanese grid infrastructures
(respectively managed by DIET and AEGIS). Two main issues were considered. The first issue is how to submit a
job from DIET to AEGIS. The second issue is how to bridge the difference of security between DIET and AEGIS. To
overcome these issues, we developed APIs to communicate between different grid infrastructures by improving the
client API of AEGIS. By developing a SeD (server deamon program) of DIET which behaves like an AEGIS user,
DIET can call functions in AEGIS: authentication, file transfer, job submission, and so on. To intensify the security,
we also developed functionalities to authenticate DIET sites and DIET users in order to access AEGIS computing
resources. By this study, the set of software and computers available within TLSE to find an appropriate solver is
enlarged over France (DIET) and Japan (AEGIS)
