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operand_m
...................
operand_1
Frame
pc
variable_n
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Java stack
variable_1
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©¦(2(&K,)190)
LPI
public class Foo {
private Bar bar = new Bar(...);
public void f() {
// calling method
int l = 0;
java.util.Date today = ...;
java.util.Vector v = new Vector();
if (...) {
boolean test = false;
...
}
int k = 5 * bar.b(today);
...
}
}
if isCapturing() {
store stack frame into
context;
store artificial PC as
LPI−index;
return;
}
hL¨n?))L12¤,¦©¤,63f6¤9¦©)J¦©¨3N¦©¨02QZ2(&V?¨3N¦n©¦(©¦d:Q@L¦Z¦©¨¦n¦©"F.K|¦©¨3N¦©¨02dvw
LPI
public class Bar {
public int b(java.util.Date date) {
// top frame’s method
...
Computation.capture();
...
return ...;
}
}
if isCapturing() {
store stack frame into
context;
store artificial PC as
LPI−index;
return;
}
Go to previous stack frame
Et>.6 !: !J_9¦(¦ L¦©6©¤>
H©¨2U7XPaRW_QTS_d7XWe`.cNd7X
B

12¤9¦8eP¦I12¤,¦(¤3+¦©¨3a?¨312)T¦©(2T¦©¨3T¦©¨02f4]12))10d:
'K^¤3©-'©["F¦©¨31P/2!¦©12¤){19n¦©¨¦}©¦12}¦©¨3n"F¦©¨319dvwI4o("Fn
@?12!¤>.)
>a{¦0:thL¨3Lg3©¦{¦(2&n4q("FL{©¦12Fq)1P0)3-2©S)J¤3F12(¤3%©¦(2&
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% 6"$3c¦1¦©¨Z"F¦©¨319dvw #J>{£8:shL¨n063a¤9-'12&9¤>A¦©¨3
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¤38e!¦b"F¦©¨31PN12¤N¦©¨3+"F¦©¨31PdvwL©¦(2&x:|hL¨3=©¦©6¦©12¤Nbx0¦N6¤,¦©)¦©¨3+¦©¨02N02¨3¦©¨3
>}|¦©¨3¤$)0F¤3n¦©¨3¦©¨02n12¤9¦©¤,63
"F¦©¨31P¦©¨¦r©¦(©¦0¦©6©¤>3:rhL¨30¦©6©¤>G
!:%E¤,¦T 1m !S>.(" 4]12=8e3"$)n126Z1P.K?¨3c¦©¨3n12}14b¦(&'¤
Et>.6
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2¦©12¤3R?>.-'¤M¤[)R¤3[1,6+©¦©-')
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¡(&'Z1¢%
@R)>'12©¦©¨" ¤,¦}¦©¨3n1P
¤9-'190¦©12¤3T¦©¨¦}0¤¢)02A¦1N8e6¦©12¤/©¦(¦Z0¦©6©¤>3:
¤3©¦
Fo(ag3>.6 !:" £8:}Ui¨3¤¢¦©¨3Z¦©¨02¢I¦1Exc©¦12dKsN¤3z¦©¨02¢}©¦(©¦/¤3
¦+8e6¦©12¤[)&'}¤312¦©¨¤>N¨¤3d:
LPI
LPI
public class Foo {
private Bar bar = new Bar(...);
public void f() {
// calling method
int l = 0;
java.util.Date today = ...;
java.util.Vector v = new Vector();
if (...) {
boolean test = false;
...
}
int k = 5 * bar.b(today);
...
}
}
public class Bar {
public int b(java.util.Date date) {
// top frame’s method
...
Computation.capture();
...
return ...;
}
}
if isRestoring() {
get LPI from context;
switch (LPI) {
...
case invoke_b:
load stack frame;
goto invoke_b;
...
}
}
if isRestoring() {
get LPI from context;
switch (LPI) {
...
case invoke_capture:
load stack frame;
goto invoke_capture;
...
}
}
Go to next stack frame
È >.64!:" !J_9¦(¦aWR¦()©¨"F¤,¦
¥G5£¢ 5¥¤ i Y © [ o] § V6:1:yk XBV,e ©
;=¤3$14b¦©¨3"$1m-'"F¤,¦cJ¨-'"%2¦1E¦©¨a)>'12©¦©¨"y1m-'T¦©¨3n12©>.¤)J12¤3c4o12"
¦©¨3
14|6)!¤>%¦©¨3}"F¦©¨31PR0))s>,¨s:

¡ #"¤$¦¥¦ %¦ : $&¦§'&( F ¦©¦ K £ ¨365 ¦
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¡ 57¦ +" *
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- ¡ £¥(§©¦©¦©¦98 6;: ¦ ¦(<
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57¦ 13¡
thread t(i)
f()
1
b()
3
bar
3
foo
1
2
restore
switch
2
b()
f()
call stack t(i)
context(i)
capturing
reestablishing
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)0¦©12¤A19.:rUVc¤312¦+¦1¦©(¤3
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¦©¨3T"F¦©¨31PM?¨(Ä©¦(©¦R¦©¨3Z2¦©6)|©¦(¦a0¦©6©¤>Fq¤
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120
100
Execution time (seconds)
100
80
60
40
20
0
Original execution time
Overhead of modifications
4 8 12 16 20 24 28
Number of nodes
Execution time (%)
80
60
40
20
0
Original execution time
Overhead of modifications
4 8 12 16 20 24 28
Number of nodes
100
100
Execution time (seconds)
80
60
40
20
Execution time (%)
80
60
40
20
0
Original execution time
Overhead of modifications
4 8 12 16 20 24 28
Number of nodes
0
Original execution time
Overhead of modifications
4 8 12 16 20 24 28
Number of nodes
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A2¦©-'c6¤9¦©)t¦©¨3n¤3¢14{¦©¨3Z12"$6¦(¦©12¤s: ¡L063n14b¦©¨3I)12¤>'-9¦¥'Kx¦©¨3
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12
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¨¤ $' $¤§)&¦ 963©¦0: h^1/©6x12©¦$©S)HGm¦©12¤N"F¦©¨319k0))?¨-'c¦1$x}"F19!~gd:hL¨3T©6)¦0K!¨31mJ-'0Kx©¨31m
4]12©"%¤3F¤3¢¦©¨3$10-'©¨302 T-'¤V)10a¦©¨¤/¤
¦©¨3F2¦©12¤3c19T¤312¦T¤!363¤3F¦©¨3
f12¤3©[02(.:rhL¨3T"%peP"%)^¤312¦©[8e6¦©12¤M¦©"Fa10-'©¨302[2 ¡ E:
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hL¨3c"F1.©¦=12"$)0¦k-.©S¤,¦=14r¦©¨3Z!©¦©©6¦A_;IWz)0¦©12¤ka63M4o12R¦©¦©¤>3K
¦©¨02/4]12Z-'© /3¦(M¤3 ,63¦0:EhL¨3%©6)¦a(¤,¦Q¤Vg3>.6U$P:"k
©¦(©¦f¤3
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¤96"cxI14r1P120Ka>'12¦I©)10L7l1m?¤30:?£l¦=0¤Mc8eP)S¤3k,
E¦©+4o12?1'202¦©¤>%"F(>'R¦1F))s1P 7
"$)"F¤9¦(¦©12¤AT¨-'c¦©¦dK63+¤©
12m:^Ui¨3¤%I19(|¤,¦b¦1}1'202©¦bI"F(>'L¦1a))312¦©¨3r1PmK2¦{¤3|¦r¦1}¦l1
14^¦©¨3"\?¨(¨f¤E¦©6©¤¤3E¦L¦1n12¦©¨3?¦lJ1n1P?¨¨¨0-'}¤312¦L-'f¦©¨J"F((>'
gx¦©-') 'K))s19(12+-'cF12, 14r¦©¨3T"F(>'.:JG=1mJ-'0K3¦©¨R¤!7
'¦0K¤3M1$12¤s:
4]12©"%¤3}10-'©¨302?¨3¤f63©¤>n¦©¨3}©¦(¤33*,0-2nWRXA£|"$)"F¤,¦(¦©12¤s: b2(¨
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% ¦ Fq?¨¨/2¦©6)) ?¦©¨3a"F((>' £8K3¦R(©S)HG0R¦0K ©S)~7
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HG0I¦T>,¤¢¤3A12>,¦I¦1%¦©¨3n¤38e!¦R1P0:T_9¤3n©S)HGm¦©12¤V¤3k©S)HGm¦©12¤
E12?¦©¨3}>.-'¤M_;IW
"$)"F¤,¦(¦©12¤sK ¦©¨3a=¦©¨a)0¦©12¤[¦©¨02?L¤31P.:b;=¤3
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hL¨3¢¤3f¦©¨02¢0¦H12¤3[7$12¤H¦©¨3/)0¦©12¤
>.©¦k¤¢126+4o("FJ12©&[-'()|3¦(F¦©©63¦©6}2=¦©¨3 &
¤3M¦©¨3 ¥¨¦¥¨§&
>,¤M-'© ©"$)SR¦1-91263R¦©¦R¤3f02¨!¡
4]122%$¤3190:
100
100
Execution time (seconds)
80
60
40
20
Execution time (%)
80
60
40
20
0
Original execution time
Overhead of modifications
4 8 12 16 20 24 28
Number of nodes
0
Original execution time
Overhead of modifications
4 8 12 16 20 24 28
Number of nodes
Et>.6 $P:" !?hL¨3cx 4o12©"%¤3n10-'©¨302¢14{9 9¦n19Z¦©(¤3 4]12©"%¦©12¤3}14JMv ¤3
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"F >'.v-2©S¤9¦R14r!©¦©©6¦A_;IW
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©¨31mu¦©¨¦=¦©¨3Z¦(¤33[*,0-2%"$)"F¤,¦(¦©12¤/=¤312¦
12©S¦[4o12%()))R12>.("$"$¤>3:
W=¦©¨3%¦©¨¤'¦©¦©¤>Q!63%?¦©Ÿ¦©¨3M>.1m?¤>
14r*,-.F12 %©¦?R-'© E8e!¤3-'.K¦R063?>% 4]12©"%¤3c1m-'©¨302d:bUi¨3¤¦©¨3T>.126k14

¦©¨3T 4]12©"%¤3c1m-'©¨302k14
1P12R¦1$?¨¨k"F(>'T¨2R¦1$a1'202©¦RR>.10?¤>3K
Z1'202©¦r,63¦t¤302(r063©¤>a123©-'$©xP7l10?¤30:|hL¨|12)" ¨2{)02!
-'©
%¡^1¢%©¦0K?¨3T¦©¨3a*,0-2%©S)HGm¦©12¤["F(¨¤©"F=¨-'Tx¤
x¤k2!M¤M¦©¨3a£¥
"$1m-'d:
¤312¦©0)
¦©12¤¦©¨¦?=63(dK0¤Ex}8e!6¦f¤¦©¨}!d¤,¦+"F1P0:'E312+02(¨¦©¦LJ}63E"%¦©©~e
e BBB :'Et>.6 $P:%a¨310+|¦©¨3L©6)¦t4]12r© 9¤3(¨12¤31263{12"$"c6¤0¦©12¤s:bhL¨3Jx 4]12©"%¤3
BBB
S ¤319RJa"F026[¦©¨3Z10-'©¨302A14 ¡ E:?hL¨3c-2©¦¥ M14r©6)¦+R12p7
¦}))5K36¦+4]12
[!63Z¦1fF-'© 4o963¤,¦T12"$"c6¤0¦©12¤/x¦l¤/¤3190K ?¨¨/063I¤312¤3¦©"$¤©¦©
)
x¨-P12R14|¦©¨3c)0¦©12¤s:
g3>.64$P: £L2?2M12¤[2© P¤3¨12¤31263=12"$"c6¤0¦©12¤
hL¨3c12¤3M¦+14r8ePx©"F¤,¦;F
9¤3(¨12¤31263b"F1P
?¦©¨fT¦©¨02N1P12)5:`GI.K9¦©¨3+©6)¦L?"c63(¨f"F12R©¦()R¦©¨¤F4]12b¦©¨3R
126¤3c=¡ E:
¤3-.©
F g3>.6A$P: £n12¤C¦©¨3+@}_ > )>'12©¦©¨"FF63F2© P¤3¨12¤31263
hL¨3M¦©¨C¦F14}8e!x©"F¤,¦
E(¦$¦©¨02A4]12a02¨/"F((>'$¤,¦0:£¥¤¢¦©¨a02.Kd¦©¨310-'©¨302
12"$"Z6¤0¦©12¤Q?¦©¨
'K¦?2+¤312¦?-P©)c¦R))5:
1P120:'Et¤))
>`:!£¥¦63(12¤) N© 9¤3(¨12¤31263+12"$"c6¤0p7
hL¨3}hR_
¤3A¦©¨3$10-'©¨302 14J126T¦©(¤3 4]12©"%¦©12¤ )>'12©¦©¨"y}¤3>.)>.)n7?¦©¨3¨>.¨3©¦}¤312¦©
¦©12¤
FoRg3>.6F$P:V$ £8:{hL¨3 § $©¦(¦"F¤,¦?¤3(©¦N9 %¦©¨3=, P¦}19I¦©(¤3 4]12©"%p7
L2L)¦©¨¤¥¡
¢2
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>u12n_;IW )>'12©¦©¨"F0Kt¦©¨3F1m-'©¨302 063V, /126a¦©(¤3 4]12©"%¦©12¤§)>'12©¦©¨"
¤V¦©¨3\@}_
¤312¦R(1-9©).:
¦T)0¦©12¤¢R"Z63¨¢"F12Z12"$)0¦k4o12"
hL¨3$_9¨))10zU
¦©¨¤ ¦©¨3/-91263A)>'12©¦©¨"F0: @L¦¦©¨3V "F/¦©"F¢¦©¨3V!©¦©©6¦ 10 12¤9¦©12)
14-9
n02©n¦1k¤) G0.:whL¨3)>'12©¦©¨"B12¤3©¦Z14
14+L¦n"F12)6)mv^x1.©¦©12¤3n12"$6¦(¦©12¤
Execution time (seconds)
120
100
80
60
40
20
0
Original execution time
Overhead of modifications
4 8 12 16 20 24 28
Number of nodes
Execution time (%)
100
80
60
40
20
0
Original execution time
Overhead of modifications
4 8 12 16 20 24 28
Number of nodes
Et>.6 $P:% !ChL¨3¢x 4o12©"%¤3/1m-'©¨302
14n9 9¦/1PA¦©(¤3 4]12©"%¦©12¤3[14 © P¤3¨12¤31263
-.©S¤,¦I14|!©¦©©6¦c@}_ >i)0¦©12¤
@IJ4o12¦©¨3T_;IW
)>'12©¦©¨"MK!¦©¨3 @=))~75+_9¨312©¦©¦ >t¦©¨ F;@T_ > £J)>'12©¦©¨"Mvw?"$)"F¤,¦(p7
1m-'©¨302f¤E¦©¨L02=-'© F6¤3©¦()=7t4o12 B ¤31P¦©¨3I©6)¦L!N¤312¦L©¨31m
¤9 N1m-'©¨302
©¦(©¦§¦c¦©¨3N)-')J14 B
4]12 %[¤31P¤3V202©¤>A?¦©¨ ¦©¨3F>.10?¤>¢¤96"cx14
¦©12¤M)>'12©¦©¨"
L8e!6¦f12¤) %12¤3I02¨f¦©"FT %©12E{4]¦¨3f9 F¦©¨3R12©&'?19({4o12"
F"%¦©¨3"%¦©0)r12¤9¦
-'()J¦(¦©12¤3n?¨¨C$4o6©¦©¨3Z!-PV¤,¦1A©¦30:¥@R4q¦Z02¨§©¦Q))b¦©¨3%19(
.$

!hL¨3% 4]12©"%¤3%1m-'©¨302 14?99¦N19%¦©(¤3 4o12©"%¦©12¤3n14R¤ 2© P¤3¨12¤31263
Et>.6U$P:
>@)0¦©12¤
?¦©¨M¦©¨02M1P12)d-2©S¤9¦=14r!©¦©©6¦L@T_
9¤3(¨12¤HG0Mx84o12T(¨3&P12¤9¦0K 1¦©¨3a, P¦a19c12"$)
¤3R¦©¨02+¦©¨¦+¤3[¦1a
4]12©"F¦©¨3R"F¦©¨31PL14^12¤3R¦©¨02f12¤) ':'@=))¦©¨3I6"F©¦(¤3?8e!)S¤E8e!¦©"F) F)1m
¦©(¤3
25
100
©6¤¤¤>F12¤f!x¤9¦?¤319x 4o12©" >.)12)d©©?© P¤3¨12¤HGm¦©12¤s: hL¨3TI¤31(¦
Execution time (seconds)
20
15
10
5
Execution time (%)
80
60
40
20
0
Original execution time
Overhead of modifications
4 8 12 16 20 24 28
Number of nodes
0
Original execution time
Overhead of modifications
4 8 12 16 20 24 28
Number of nodes
60
100
Execution time (seconds)
50
40
30
20
10
0
Original execution time
Overhead of modifications
4 8 12 16 20 24 28
Number of nodes
Execution time (%)
80
60
40
20
0
Original execution time
Overhead of modifications
4 8 12 16 20 24 28
Number of nodes
¦©¨02[x
Et>.6 $P: !?hL¨3cx 4o12©"%¤3n10-'©¨302¢14{9 9¦n19Z¦©(¤3 4]12©"%¦©12¤3}14J w¤3
"F >' 3-2©S¤9¦R14r!©¦©©6¦c@T_ >

!{hL¨3}x 4]12©"%¤3a10-'©¨302k14t99¦a1P}¦©(¤3 4]12©"%¦©12¤3R14|¦©¨3Z_9¨))10uU ¦
Et>.64$P:S
!©¦©©6¦A)0¦©12¤
JV¤) G0¢¦©¨3/)S !M14n(¨3&P12¤9¦0: Xk12A) 'KI¢"F02©6¢¦©¨3
£¥¤H¦©¨¦©12¤
©6"$¦©12¤ F]p4o¦
¦©"FE¤,¦©-.)L¦¥J¤§¦©¨3E)S2©¦¨3&Px12¤,¦$963©¦¤3Q¦©¨3N)S2©¦Z¦©¨02
£8:nhL¨3)12¦}(¤,¦T¦©¨3)S /2I4q6¤3¦©12¤3T14¦©¨3¨3&Px12¤,¦c©HG0$¤3¢¤96"cx
(¨3&P12¤9¦
P¤3¨12¤HGm¦©12¤s:
14|¤319+¤,-'12)-'M¤[¦©¨3T>.)12)^©
Yx¦l¤H¦©¨3k©HG0A14a¦©¨3A(-'i3¦(§¤3
Et>.6L$P:V$
)0¦©12¤
60
100
Execution time (seconds)
50
40
30
20
10
0
Original execution time
Overhead of modifications
4 8 12 16 20 24 28
Number of nodes
Execution time (%)
80
60
40
20
0
Original execution time
Overhead of modifications
4 8 12 16 20 24 28
Number of nodes
Ñ Ñ"Ñ ²KšOœJÐ'«œ £>—F¬E¦Üšt« ¥„šZœÏ šO—FÓm«„Ð¥›—Bâ¡£¬+#ÙÓE¡Ç˜L›œÏ¡ ¡ ¤›šZÓ}¦Ï EšZ¦Jâ ¥ «„¡£¬Þ
=

E12=))d¦©¨3}¦©¦+©xf¤¦©¨+¦©12¤[J}63f¦©¨3T"F1.¦+12"$)0¦M¦©6sK¤"F)
P¤3¨12¤31263I12"$"c6¤0¦©12¤A?¦©¨k¦©¨02M1P12)5:{hR_ >@¤3A_9¨))10 U ¦}a8e¦©12¤3
2©
A1N¤312¦a))1m 4o12I"F1P!~4q P¤>f¦©¨3$12"$"c6¤0¦©12¤ "F¦©¨31Pd:n;=6T©!©¦" ¨2aE12¤!g7
2}¦©¨3
%¦©¨3 "10? (.&CB1 +$'&CD#E )% B $ND#"8K3¦©¨¦?¦))?¨310 "%¤9 f¦©"F?¦©¨3
>.6()a12¦©12¤[¦©¨¦=))10+R¦1$©~4o
':+£l¤k12¦©¨3RJ12mK
(¨3&P12¤9¦}¨3126)MxT)0¦d:+G=>.¨3R¤,6"ZI"F0¤3=¨>.¨3=)S)¦¥
¤31P`¦©¨¦|"%0 Z(2©¨?¦©¨3126¦|"%&9¤>}¦©¨3L© !©¦" 6¤)
)0¦©12¤452¦12|`¦©¨3¤96"cx{14
¦1N10-'0:IG=1mJ-'0Kx"F12Z)02I"F0¤3})(1%>.>'}10-'©¨302¢14{¦©¨3n©S)HGm¦©12¤¢¨2.:
¢ :
£¥¤M126+¦©¦?T63f¦©¨3T)1mJ©¦=1.(©)})0¦©12¤M452¦12?-2)63
&I12¦?¦©¨¦{¦©¨3L>.(¨N¤g3>.6($P:=}¨2r)12>,©¦©¨"$=0)r4]12rx12¦©¨%pe!0:|hL¨34o6¤3¦©12¤sK,
@IR12¤3Z126)
c)12¦©¦©¤>NR"F12¤312¦12¤Z1F)12>275)12>N)12¦=&'3R¦©¨3c)S¦©12¤k14{12©>.¤)t3¦(!:
xN1e!"%¦ , M)¤30c4o6¤3¦©12¤Q14R3¦([©HG0.:
8e!¦0Kt¦©¨3%¦©"FN14RM(¨3&P12¤9¦$0¤
M¤312¦©c¦©¨¦}126I)12¦==¤M452¦I12"$x1.A14{¦l1N)¤30=4o6¤3¦©12¤30:
£l4{JZ)1912&M)1.(=c"%0
!©¦©©6¦N)0¦©12¤%>.10+b©)10{¦©¨¤4o12r>.>'{3¦(!:'E12{©"%)){¨3(&9x12¤,¦J¦©¨3L¦©"F
Z12¤n¦©¨3J8D%¤3 n14©¦(¦J -P¤>I8e!¦¤3©12¤30: J¨3&Px12¤,¦0K2¦©¨¦r12¤,¦(¤¨96>'
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8e!)S¤M¦©¨3a!d¤3+¤x 4o12©"%¤3c¨0-9120:
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$P: B ©¨310+=¦©¨3T¤!363¤3Z14|¤302¤>%¦©¨3T¤96"cxI14r¤31P+12¤M¦©¨3a¦©"Fa¤3
Et>.6
["$)SI(¨(2¦©©¦©T¤A>,[¦1N¦©¨3c)¤>.¦©¨/14{¦©¨3n¨3(&9x12¤,¦©¤>M¨2(.:RhL¨3$)>'17
-'©
,6¦I¤3¤3¦©-'=¦1Z¤302©¤>¦©¨3I¤,6"Z+14^1P12¤9-'12)-'d: R}+¤) !©
©¦©¨"
Execution time (seconds)
20
4
1
0.2
SOR
20 100 500 4000 64000
20
4
1
0.2
Water
500 2000 10000 64000
Execution time (seconds)
20
4
1
0.2
ASP
500 2000 10000 64000
Checkpoint size (KBytes)
20
4
1
0.2
TSP
500 2000 10000 64000
Checkpoint size (KBytes)
Et>.64$P:= !{hL¨3}¦©"Fa14|¦©¨3a¨3(&9x12¤,¦©¤>E¨2c2=Z4q6¤3¦©12¤[14r3¦($©HG0
E312©"%))¨3(&9x12¤,¦Fq)(c¦©¨¤"2X ¡
£T¦©¨3%¦©"FN¤3Q4o12n0¦©6©¤>A¦©¨3E©¦(¦E14+¦©¨3
"F126¤9¦J14d3¦(}"F10-'R¦©¨3+10-'©¨302F4q12"
¦©¨3+3¦(T©S)HGm¦©12¤N¦1a3¦(T¤3!¤>Z¤3%©¦12©¤>
4]12?¦(&9¤>En>.)12)`¨3(&9x12¤,¦0:
¦©¨3?¨3(&9x12¤,¦b2b10eP"%¦) ¦©¨3?("F4]12{))312¤!g3>.6(¦©12¤3 ¢ BB ¡ ¡}:
hL¨3?HG0?14
_;IW
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14|_;IW
¤3¥@T_ >C02-'0)L>.1263?14s¤319I¤96"cx??¦©¨©"$)S(¨(2¦©©¦©0:JhL¨3
B

A¤,6"ZZ14¤31P}¦©¨¦Zx10JZ14 !:£¥¦I"%0 ¢8e!)S¤3/,
>.1263n$)"$¦/,
P¤3¨12¤HGm¦©12¤V)>'12©¦©¨"M:RhL¨3c¤3>.¨,x12©¨3191Pk4q6¤3¦©12¤k63M4]12
¦©¨3n¨(2¦©©¦©T14r¦©¨3n©
P¤3¨12¤HG0f¤§)12>,©¦©¨"$¦©"F.:§;=¦(¤3
>r1P©6¤¤¤>V12¤C!d¤,¦F¤31P©¨3126)C©
0¤k0)t?¦©Ä>.>'=¤96"cxI14{¤31PR?¦©¨3126¦I"c63(¨¢)1.
©6)¦I©¨31mu¦©¨¦}126I)>'12©¦©¨"
4o12©"%¤3.:,E6©¦©¨3©"F12.K3¦©¨3}10-'©¨302[14`¦©¨3T¨3(&9x12¤,¦©¤>N¨2}?¨3¤[Z¤,6"ZR14
12¤x
12¤M¦©¨3a>.)12)^ 9¤3(¨12¤HGm¦©12¤s:?hL¨02
©¦©¦©¤>E¤319R?¤302k¤3R¤312¦R12¤)
k¤3V!d¤,¦n"F126¤,¦c14¦©"Fn4o12a0¦©6©¤>[¦©¨3a©¦(¦.:
©6¤¤¤>[12¤V!d¤,¦c¤319}"%0
[26"c6)S¦F¤3[¤,¦©1P!63n-9©)Z87
hL¨3n1.))S¦©12¤3}14{¦©¨3c©¦(¦n©S)HGm¦©12¤A¦©"FI"%
P0:khL¨3%4]2¦Z"% 8e!)S¤ ¦©¨3%©6)¦12¦(¤3Q4]12c¦©¨3NU ¦)0¦©12¤C?¨3N¦©¨3
)S0
B ¤31PaT)1mJn¦©¨¤V4]12 !:NhL¨3%¦T©6)¦a%12¦(¤3/4]12a¦©¨3NhR_ >
1m-'©¨302V4]124
)>'12©¦©¨"M:J£l¤f¦©¨+02}¦©¨3}=)"F1.©¦?¤31$10-'©¨302M12¤¤3¦[?¦©¨¤302©¤>F¦©¨3}¤96"cx
14|¤319m:
H19[0¤ ¢¤¦©S¦dKT¦©¨3A45)6V14n¦©¨3/19(¨2¦1§x¢¤312¦© ,
¦©¨3/1m-'©
F]))+¤31PF¦©© §¦1
¤312¦©¨3E19(0:{19(%?¨(¨
)-'.:d@R))})-'[1PfM¤!4]12©"F
&'A¨3&Px12¤,¦=4o12?12&'¤k19(=T963©¦¦1F10-'I¦©¨3"M:J£¥¤[12+¦1F1%¦©¨¦0K
Execution time (seconds)
2.5
2
1.5
1
0.5
0
SOR
4 8 12 16 20 24 28
2.5
2
1.5
1
0.5
0
Water
4 8 12 16 20 24 28
Execution time (seconds)
2.5
2
1.5
1
0.5
0
ASP
4 8 12 16 20 24 28
Number of nodes
2.5
2
1.5
1
0.5
0
TSP
4 8 12 16 20 24 28
Number of nodes
Et>.64$P: B !bhL¨3T¦©"FT14t¦©¨3c¨3&Px12¤,¦©¤>E¨2c2RZ4o6¤3¦©12¤[14|¤,6"cx=14|¤31P
6©x1.F14?¤9¦V¦©¦Z8g3¤3nf1'202¦©¤>k©¦©©63¦©6%¤QE4]12©"
14?¦©¨3$¤© /¦©.:
Ñ Ñ ¡Ñ ²KšOœJÐ'«œ £>—F¬E¦Üšt« ¥„šZœÏ šO—FÓm«„Ð¥J šlœJšZ¦Ü« ¥„šOœ¤£
¥ œJ«¦ÜšZ˜Û˜
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Recovery time (seconds)
Recovery time (seconds)
90
50
20
10
SOR
5
10 100 1000 8000 64000
90
50
20
10
ASP
5
10 100 1000 8000 64000
Checkpoint size (KBytes)
90
50
20
10
Water
5
10 100 1000 8000 64000
90
50
20
10
TSP
5
10 100 1000 8000 64000
Checkpoint size (KBytes)
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SOR
Water
)1F¤302+8e!¦¤3!¤>%¦©¨3}?¨312)T1m-'© 19m:
Recovery time (seconds)
11
9
7
5
3
4 8 12 16 20 24 28
11
9
7
5
3
4 8 12 16 20 24 28
ASP
TSP
Recovery time (seconds)
11
9
7
5
3
4 8 12 16 20 24 28
Number of nodes
11
9
7
5
3
4 8 12 16 20 24 28
Number of nodes
Et>.64$P: !{hL¨3}10-'© ¦©"FZ2RZ4q6¤3¦©12¤k14t¤96"cx=14|¤319
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100
80
Execution time (%)
60
40
20
0
Method Call Graph
Original Brakes Overhead
SOR TSP ASP WATER
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