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Power verification is just as important as functional verifi
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Caolang



Joined: 28 May 2013
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PostPosted: Tue May 28, 2013 4:40 pm    Post subject: Power verification is just as important as functional verifi Reply with quote

SoCs are getting smaller and faster, but smaller node geometries leak more current and higher speed circuitry consumes more power. Yet everyone wants to reduce power consumption.

Analysis of power characteristics and verification of power management functionality have been employed to reconcile these opposing vectors –first at the gate level and then at the RTL. But these approaches fall short for both system level verification and applications that require real world stimulus. With gate level verification, simulations are slow, while debugging is difficult, takes longer and requires more resources. Meanwhile, RTL simulation using directed unit level tests on individual blocks provides neither the completeness nor accuracy required for full chip power verification and analysis.

Because power is impacted by software and hardware, low power verification and power analysis must be done at the system level on the full chip, applying real world applications and long test sequences. Emulators have the speed and capacity to pull in the full design environment, even for 1billion gate designs, apply real world stimuli – including application and embedded software – and run many sequences.

Mentor Graphics' Veloce system has two primary aspects, which can be used together or separately. Low power verification ensures that power management techniques were implemented correctly and that the power functionality of the design is correct. Power analysis calculates average and peak power to help design efficient batteries and to avoid such things as over or under specifying SoC power requirements.

Low power verification
Emulation enables designers to conduct power related verification at the system level with software and hardware running simultaneously. Test sequences can be sent from software and executed by the hardware. Designers can also boot an operating system and stress test the design quickly through a large number of power sequences.

The growing number of SoC power domains is one reason why emulation is essential for complete and accurate low power verification. Only emulation has the speed and capacity to repeatedly exercise a large number of power domains and, because the whole SoC is mapped into the emulator, it can mimic low power functionality using real stimuli, providing a higher confidence in the completeness of verification than is possible with simulation.

Various power management design techniques can minimise power consumption. At a conceptual level, these involve:
• switching off power domains that are not needed for specific SoC functionality to reduce leakage current, and
• creating multiple voltage domains to trade off power requirement and performance

Verifying these low power management techniques have not impacted the design functionality requires modelling and thorough verification of: retention; corruption; isolation; and level shifters. Veloce provides support for all of these verification and modelling tasks
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martaacosa



Joined: 03 Jun 2013
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PostPosted: Mon Jun 03, 2013 10:47 am    Post subject: Reply with quote

The Repair Disk function ... If Verify Disk finds errors on your startup disk, you must repair the disk as noted in point 1. ... It is important to understand that Repair Disk Permissions only verifies and repairs the ... Power outages, hard restarts, and system crashes can lead to disk directory corruption, ...
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Montmarions



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PostPosted: Mon Jul 15, 2013 6:35 am    Post subject: Reply with quote

SoCs are getting smaller and faster, but smaller node geometries leak more current and higher speed circuitry consumes more power.
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pattersonjohn514



Joined: 16 Jul 2013
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PostPosted: Tue Jul 16, 2013 4:29 am    Post subject: Reply with quote

SoCs are getting smaller and faster, but smaller node geometries leak more current and higher speed circuitry consumes more power.
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elizatina14



Joined: 19 Jul 2013
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PostPosted: Fri Jul 19, 2013 7:02 am    Post subject: Reply with quote

Ever-growing design complexity and the challenges associated with power consumption are now affecting the ability to functionally verify designs.
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Headaiinfernoai



Joined: 20 Jul 2013
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PostPosted: Sat Jul 20, 2013 8:12 am    Post subject: Reply with quote

Functional verification, in electronic design automation, is the task of verifying that ... verification, considers non-functional aspects like timing, layout and power. ... The randomness is important to achieve a high distribution over the huge space ...



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jessicazane1



Joined: 30 Jul 2013
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PostPosted: Tue Jul 30, 2013 10:03 am    Post subject: Reply with quote

According to recent studies, approximately 9.2 million Americans suffered from identity theft crimes in 2004, costing consumers $5 billion, and banks and corporations $48 billion. Biometrics is an emerging technology that is quickly garnering wide attenti
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samithaxee



Joined: 01 Aug 2013
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PostPosted: Thu Aug 01, 2013 8:22 am    Post subject: Reply with quote

Functional verification, in electronic design automation, is the task of verifying that ... verification, considers non-functional aspects like timing, layout and power. ... The randomness is important to achieve a high distribution over the huge space ...
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jasminen691



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PostPosted: Fri Aug 02, 2013 10:47 am    Post subject: Reply with quote

The summons from Professor Barrett - for that is what it amounted to - was cursory, emailed the day after their customary third-Thursday sessions: "Dear Students and Co-Investigators, Yesterday evening - absent our normal session- was a "bummer" for me - I missed our get-together. Also, I now feel we haven't properly finished off our year-long project. So: next month - third Thursday - 7 p.m. - my home - everyone please bring a bottle of champagne - look sharp (I'll be wearing my red bow-tie, short-sleeved shirt, creased pants and moccasins), also be mentally sharp: session subject; "Biblical Exodus, 21st Century Verification," Let's really nail it down. No excuses short of a heart attack. Prof. Barrett."
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pamelatina275



Joined: 05 Aug 2013
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PostPosted: Mon Aug 05, 2013 10:10 am    Post subject: Reply with quote

Having confidence in the identity of your customer is one of the key components of safely conducting business. With occurrences of business fraud, identity theft and money laundering on the rise, business owners and operators have both a moral responsibility and a federal obligation to implement comprehensive identity verification tools.
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ferrolsamswyatt



Joined: 09 Aug 2013
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PostPosted: Fri Aug 09, 2013 11:55 am    Post subject: Reply with quote

Many interesting systems are too complex to fit on just one chip built with a process ... This process is called functional verification and it accounts for a significant ...
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sherr606



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PostPosted: Mon Aug 12, 2013 10:13 am    Post subject: Reply with quote

SoCs are getting smaller and faster, but smaller node geometries leak more current and higher speed circuitry consumes more power.
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PostPosted: Wed Aug 14, 2013 7:08 am    Post subject: Reply with quote

According to recent studies, approximately 9.2 million Americans suffered from identity theft crimes in 2004, costing consumers $5 billion, and banks and corporations $48 billion. Biometrics is an emerging technology that is quickly garnering wide attention for its promises to alleviate security breaches and offer solutions to key challenges, such as financial theft and fraud, faced by real-world enterprises.
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calebccalvin



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PostPosted: Wed Aug 21, 2013 7:24 am    Post subject: Reply with quote

SoCs are getting smaller and faster, but smaller node geometries leak more current and higher speed circuitry consumes more power.
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PostPosted: Sat Aug 24, 2013 6:57 am    Post subject: Reply with quote

According to recent studies, approximately 9.2 million Americans suffered from identity theft crimes in 2004, costing consumers $5 billion, and banks and corporations $48 billion. Biometrics is an emerging technology that is quickly garnering wide attention for its promises to alleviate security breaches and offer solutions to key challenges, such as financial theft and fraud, faced by real-world enterprises.
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