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Allinea DDT Sets Record with 700,000+ MPI Tasks on Blue Waters

Today Allinea announced a new scalability record on the Blue Waters supercomputer at NCSA. Now in full production mode, Blue Waters is the world’s fastest supercomputer on a university campus with a theoretical capacity of 11.62 petaflops.

While getting the machine up to speed, the Blue Waters team ran their own demanding acceptance trials with Allinea DDT debugging more than 700,000 MPI processes simultaneously.

Having Allinea DDT in the hands of users at this scale whenever the need arises and at any scale – with its lightning fast performance and easy to use interface – is a critical part of getting the scientific applications to super-petascale,” says David Lecomber, COO and founder of Allinea.The implementation of the Blue Waters system had a tough timeline – and having a debugger ready to deploy at large scales was critical to meeting the schedule. “We knew our tool was more than ready,” says Lecomber. “We wanted the NCSA to take Allinea DDT to the extreme and see it first-hand, as real users. They came back with the news that it was 30x faster than they specified in performing common debugging tasks—without any extra tuning.”

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