Nests

Replaceable Nests

Suitability of artificial nests.

Purification of erythroblastic nests.

We describe a method for preparing purified erythroblastic nests in large numbers (approximately 10(6)/run) in three steps: (1) induction of splenic erythropoiesis in mice, (2) preparative differential centrifugation for the removal of erythrocytes and single cells from spleen cell suspensions, and (3) sedimentation in an isokinetic gradient of Ficoll 400 in Joklik's modification of minimum ess...

Scheduling Uniform Loop Nests

This paper surveys scheduling techniques for uniform loop nests. First we introduce the hyperplane method and related variants. Then we extend it by using a diierent aane scheduling for each statement within the nest. In both cases we present a new, constructive and eecient method to determine optimal solutions.

Mapping Aane Loop Nests

This paper deals with the problem of aligning data and computations when mapping aane loop nests onto Distributed Memory Parallel Computers (DMPCs). We formulate the problem by introducing a new graph, the access graph, to model aane communications (with rectangular access matrices) more adequately than with the previously introduced tool, the communication graph. We show that maximizing the nu...