XPower crashes....

Hi, I do a post place and route simulation using modelsim. To estimate the power I generate dump.vcd file during simulation so that I can get the power numbers using XPower. The problem is that XPower at the very end of its execution crashes and it aborts, giving me this message:

FATAL_ERROR:Power:vcdParser.y:815: - PowerVcd_Parser: line 669374017: No valid identifier code was specified for scalar value change. Identifier provided was jL:0nL: Process will terminate. To resolve this error, please consult the Answers Database and other online resources at

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The size of the vcd file is about 5GB. So there is no way that I can open it to get a better idea of the problem. Do you have any idea why I get this error message? Can it be a problem of my design size? or can it be a problem with the design itself? Because the simulation works just fine so I don't know why XPower should crash. My design is roughly about 8000-9000 slices.


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File sizes over 4 GB are not supported on 32 bit platforms -- are you running XPower on a 64 bit platform?



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Russ Panneton

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