commit d14849664f25874e836f5936e80a51c461371cfc
parent c03c64fa306f445030679b7bea6c030cf973cdee
Author: Ivan Gankevich <igankevich@ya.ru>
Date: Mon, 30 Oct 2017 14:27:17 +0300
Add kernel-node diagram.
Diffstat:
1 file changed, 25 insertions(+), 3 deletions(-)
diff --git a/arma-thesis.org b/arma-thesis.org
@@ -3351,9 +3351,31 @@ failure was simulated by sending ~SIGKILL~ signal to the daemon process on the
corresponding node right after the copy of the main kernel is made. The
application immediately recognised node as offline, because the corresponding
connection was closed; in real-world scenario, however, the failure is detected
-after a configurable TCP user timeout\nbsp{}cite:rfc5482. The run time of these
-runs were compared to the run without node failures, results are presented in
-fig.\nbsp{}[[fig-master-slave-failure]].
+after a configurable TCP user timeout\nbsp{}cite:rfc5482. The execution time of
+these runs were compared to the run without node failures, results are presented
+in fig.\nbsp{}[[fig-master-slave-failure]]. The diagram of how kernels are
+distributed between two nodes is shown in fig.\nbsp{}[[fig-master-slave-backup]].
+
+#+name: fig-master-slave-backup
+#+begin_src dot :exports results :file build/master-slave-backup.pdf
+digraph {
+
+ node [fontname="Old Standard",fontsize=14,margin="0.055,0.055",shape=box,style=rounded]
+ graph [nodesep="0.30",ranksep="0.30",rankdir="BT"]
+ edge [arrowsize=0.66]
+
+ m1 [label="{{<master>Master | 10.0.0.1} | {<main>M | <slave1>S₁ | <slave3>S₃}}",shape=record]
+ m2 [label="{{<slave>Slave | 10.0.0.2} | {M' | <step>N | <slave2>S₂ | <slave4>S₄}}",shape=record]
+
+ m2->m1
+
+}
+#+end_src
+
+#+name: fig-master-slave-backup
+#+caption: Master and slave nodes and mapping of main kernel \(M\), a copy of main kernel \(M'\), current step kernel \(N\) and subordinate kernels \(S_{1,2,3}\) on them in the benchmark.
+#+RESULTS: fig-master-slave-backup
+[[file:build/master-slave-backup.pdf]]
As expected, there is considerable difference in application performance for
different types of failures. In case of slave node failure the main kernel as
