Mentor Graphics Enhances inFact to Exploit Distributed Compute Environments
26 6월 2008 - 10:00PM
Business Wire
Mentor Graphics Corporation (Nasdaq:MENT) today announced
availability of an enhancement to inFact�, Mentor�s award-winning
intelligent testbench automation tool. The latest version of the
inFact tool now enables large simulations to be automatically
distributed across up to 1000 CPUs, extending non-redundant
sequence generation to entire simulation server farms. Mentor�s
inFact tool achieves superior functional coverage by
algorithmically traversing multiple rule-graphs and synthesizing
testbench sequences on-the-fly during simulation. The rule-graphs
are derived from interface descriptions, bus protocols, functional
specifications, or test plans. While rule-graphs are much smaller
than conventional testbenches, they allow large quantities of
sequences to be generated. However, unlike traditional constrained
random test techniques, rule-graphs enable non-redundant sequence
generation, eliminating waste of simulation time and resources.
Recent enhancements to the inFact tool enable large simulations to
be distributed across multiple CPUs, allowing non-redundant
sequence generation to take full advantage of existing simulation
server farms. This massive gain in efficiency is attributable to
the inherent architecture of rule-graphs and new advanced traversal
algorithms tuned for production applications. A spatial
distribution algorithm prevents repetition of sequences on any
given simulation CPU, and a modulo-N algorithm prevents repetition
of sequences across the entire simulation farm. The same simulation
of millions of sequences that requires one thousand hours of
run-time on a single CPU can be completed in just minutes longer
than ten hours on a simulation farm of one hundred similar
simulation CPUs. However, the power of rule-graphs for production
simulation is only partially realized when it assumes that all
simulation CPUs are equivalent, all are available for distribution
100% of the time, and that all testbench sequences require the same
amount of simulation time. In a more realistic situation, not all
CPUs in a server farm may be equally configured, not all may be
available for the duration of a simulation run, and every testbench
sequence may take a different amount of time to simulate. To
address these complexities, the inFact Simulation Distribution
Manager breaks up the universe of sequences into smaller virtual
slices and assigns a new slice to each simulation CPU when it has
completed previous slice or when it becomes available altogether.
This provides an automatic load-balancing effect, preventing the
situation where one simulation CPU finishes quickly and waits idly
while others finish. It also uses every available simulation
resource efficiently, including CPUs that become available after
finishing other jobs. �The architecture of inFact enables
staggering productivity enhancements in system verification�and can
leverage large simulation farms with great efficiency,� said Serge
Leef, general manager of Mentor Graphics� System-Level Engineering
Division. �With enhancements like these,�Mentor continues to
demonstrate�its leadership in testbench technology.� Pricing and
Availability The latest version of inFact is available immediately
at a starting price of $75K. About Mentor Graphics Mentor Graphics
Corporation (NASDAQ: MENT) is a world leader in electronic hardware
and software design solutions, providing products, consulting
services and award-winning support for the world�s most successful
electronics and semiconductor companies. Established in 1981, the
company reported revenues over the last 12 months of over $850
million and employs approximately 4,200�people worldwide. Corporate
headquarters are located at 8005 S.W. Boeckman Road, Wilsonville,
Oregon 97070-7777. World Wide Web site: http://www.mentor.com/.
Mentor Graphics is a registered trademark and inFact is a trademark
of Mentor Graphics Corporation. All other company or product names
are the registered trademarks or trademarks of their respective
owners.
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