The Art of Software Thermal Management for Embedded Systems by Mark Benson

By Mark Benson

This publication introduces software program Thermal administration (STM) as a method of decreasing energy intake in a computing process on the way to deal with warmth, increase part reliability and bring up approach protection. Readers will reap the benefits of this pragmatic consultant to the sector of STM for embedded structures and its catalog of software program energy administration suggestions. because thermal administration is a key bottleneck in embedded platforms layout, this booklet makes a speciality of root reason behind warmth in embedded structures: strength. on the grounds that software program has an incredible influence on strength intake in an embedded approach, this booklet urges software program engineers to control warmth successfully through figuring out, categorizing and constructing new how one can lessen static and dynamic energy intake. while such a lot books on thermal administration describe mechanisms to take away warmth, this publication makes a speciality of methods for software program engineers to prevent producing warmth within the first position.

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In this graph, you can see that the transistor density has continued climbing according to Moore’s Law. However, power consumption and CPU frequency have leveled off as we have bumped up against signal integrity issues and issues transferring heat from a device with such a small thermal mass to ambient Frequency Fig. 7 The Law of Dynamic Power, when graphed as a function of processor frequency, shows that as the frequency of a processor increases, the amount of power that is required to charge and discharge the processor’s capacitive load grows at an exponential rate.

These topics are discussed in the coming chapters. Summary • Software engineering is a new field when compared to Classical Thermodynamics. The number and variation of types of software development processes, patterns, refactoring techniques, and architectural styles are high. • The field of Software Thermal Management sits at the intersection of Thermodynamics, Electrical Engineering, and Software Engineering. 4 Crossroads 43 Fig. 17 Software plays a special role in thermal management architectures.

Summary • Moore’s Law says that the number of transistors per square inch has and will continue to increase at an exponential rate. • Moore’s Law has remained amazingly accurate for nearly 50 years (although we’ll see some caveats to this in Sect. 2. 2 Thermal Wall Interestingly, if we look closer, an odd phenomenon has emerged: although transistor density has continued to climb, CPU speed has not followed in the same manner. Clock speeds and power consumption have both leveled off starting in 2005 as 20 2 Landscape: History, Present Barriers, and The Road Forward Intel Transistor Density (000) 1e+07 1e+05 1e+03 1e+01 1970 1980 1990 2000 2010 Date of Introduction Fig.

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