1. A method comprising: (a) receiving a first packet, from a first computing resource at a second computing resource, wherein the first computing resource and the second computing resource are among a plurality of computing resources of a computing system, the first packet comprising: (i) first data, and (ii) data specifying instructions for the second computing resource to write the first data to memory associated with the second computing resource, and notify a notification target computing resource from among the plurality of computing resources of the computing system once the first data has been written to the memory associated with the second computing resource; (b) writing, by the second computing resource, the first data to the memory associated with the second computing resource; subsequent to the first data having been written to the memory associated with the second computing resource, (c) transmitting a response packet, by the second computing resource to the notification target computing resource, the response packet comprising data specifying that the first data has been written to memory associated with the second computing resource; and (d) transmitting a second packet, by the second computing resource to a third computing resource from among the plurality of computing resources, the second computing resource being chained between the first computing resource and the third computing resource, wherein each of the first packet and the second packet comprises (iii) second data, and (iv) data specifying instructions for the third computing resource to write the second data to memory associated with the third computing resource, and notify a second notification target computing resource from among the plurality of computing resources when the second data has been written to the memory associated with the third computing resource.