Hello, I'm working with Mehdi Bendahhou (Atos) on a new provider. We have a few questions about the API specification.
First, we were wondering how to deal with the MULTI_RECV option when checking overruns of the RX CQ. When fi_recv is called with this option we cannot know how many messages will be received and thus how many completions may result of this operation. If resource management is enabled, documentation states that the provider must return -FI_EAGAIN if an operation could result in CQ overruns. Is there a specific case to apply with the MULTI_RECV option ? If not, what should we do in this situation ? Second, we are unsure about the state of an address vector during the execution of an application. Are address vectors static as soon as the endpoint is enabled or can they change dynamically ? Last, in a connectionless endpoint, is it required for a receiving application to have the sender address in its address vector if the fi_recv is posted with a src_addr to FI_ADDR_UNSPEC and/or FI_DIRECTED_RECV is disabled ? If this helps to answer the last two questions, we are trying to determine if at any given point an endpoint is able to retrieve a list of all address/endpoints it is communicating with (both in emission and reception). Thanks in advance to those who can enlighten us ! Hugo Bolloré - Atos _______________________________________________ ofiwg mailing list [email protected] https://lists.openfabrics.org/mailman/listinfo/ofiwg
