Install both 32 and 64 drivers on64 bit operating system?

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Install both 32 and 64 drivers on64 bit operating system?

Hi am planning to upgrade teradata client on a microstrategy 64 bit linux server. I am confused if I have to install just 64bit tools or even 32 bit utilities as well?

utilities like Bteq, fastload, multiload come in 32 bit package and not in a 64 bit package. Please suggest what utilities I really need to install?