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The host and eTPU are performing read-modify-writes but the eTPU is overwriting the hosts update. Is this a bug?

April 26, 2017bug etpu host overwriting Performing

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The host and eTPU are performing read-modify-writes but the eTPU is overwriting the hosts update. Is this a bug?

1 Answer

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Posted

I’m having problems when the host and eTPU are using variables in the same PRAM word. Both are performing read-modify-write sequences on their own words, but the eTPU is overwriting the host’s update. Is this a bug? No, but it will require you to use semaphores to arbitrate access to the PRAM location.