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Altera_Forum's avatar
Altera_Forum
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12 years ago

Could the global variable shared between two kernels in the same aocx file?

Say, in the same aocx file, one kernel (the host call it first) writes to the global variable, while the other kernel (the host call it second) will read from it. is that that possible?
Altera_Forum's avatar
Altera_Forum
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12 years ago

If by global you mean file scope variables the answer is yes but there would be no syncronization between the kernels accessing that shared data. If the kernels operate sequentially then there would be no properly but if they operate concurrently then you run the risk of a data hazard.

I could write more but if you described what you are trying to achieve I can probably describe a safer method to share data amungst kernels.