In the text, three variations of send were discussed: synchronous, blocking, and nonblocking. Give a fourth method that is similar to blocking send, but has slightly different properties. Give an...

In the text, three variations of send were discussed: synchronous, blocking, and nonblocking. Give a fourth method that is similar to blocking send, but has slightly different properties. Give an advantage and a disadvantage of your method as compared to blocking send. Consider a multicomputer running on a network with hardware broadcasting, such as Ethernet. Why does the ratio of read operations (those not updating internal state variables) to write operations (those updating internal state variables) matter?