I'm running example programs (hello-world & pi) with mvapich2 2.2.
After computing I see info that looks like debug (in error thread).
output thread
Process 2 of 5 is on 37eff7e817ee
Process 0 of 5 is on cb1479885879
Process 4 of 5 is on 6511b189f06b
Process 1 of 5 is on 6511b189f06b
Process 3 of 5 is on cb1479885879
pi is approximately 3.1415926544231230, Error is 0.0000000008333298
wall clock time = 0.051757
errors thread
[2] 40 at [0x0000000001d8dd28], pid/ch3/channels/mrail/src/gen2/rdma_iba_priv.c[1123]
[2] 136 at [0x0000000001d8dbf8], pid/ch3/channels/mrail/src/gen2/rdma_iba_priv.c[1110]
[4] 40 at [0x0000000000df3868], pid/ch3/channels/mrail/src/gen2/rdma_iba_priv.c[1123]
[4] 136 at [0x0000000000df3738], pid/ch3/channels/mrail/src/gen2/rdma_iba_priv.c[1110]
[3] 40 at [0x0000000001bf32c8], pid/ch3/channels/mrail/src/gen2/rdma_iba_priv.c[1123]
[3] 136 at [0x0000000001bf3198], pid/ch3/channels/mrail/src/gen2/rdma_iba_priv.c[1110]
[0] 40 at [0x00000000012ebda8], pid/ch3/channels/mrail/src/gen2/rdma_iba_priv.c[1123]
[0] 136 at [0x00000000013029b8], pid/ch3/channels/mrail/src/gen2/rdma_iba_priv.c[1110]
[1] 40 at [0x0000000001514788], pid/ch3/channels/mrail/src/gen2/rdma_iba_priv.c[1123]
[1] 136 at [0x0000000001514658], pid/ch3/channels/mrail/src/gen2/rdma_iba_priv.c[1110]
Environment:
CentOS 7;
Mellanox MT25204;
mvapich2-2.2 (installed from yum).
screenshot
How can I disable it?
These prints are caused by memory leaks inside the MPI library or the application itself. It also shows that you are using a debug build of MVAPICH2. If you built MVAPICH2 yourself, remove the options --enable-g=all --enable-fast=none --disable-fast from configure. This will also improve your performance.
Related
As per title I want to check output of the equivalent command but on a Solaris 11 box.
Is there a similar command?
In Solaris 11 you have standard ntp daemon so you can use command:
ntpq -p
to get the list of peers. And with this command you can see also some local time sync parameters:
root#sol1:/etc/inet# ntpq -p
remote refid st t when poll reach delay offset jitter
==============================================================================
+time.cloudflare 10.74.8.178 3 u 15 64 3 9.287 -241.90 210.255
*mail.eban-meban 147.125.80.35 3 u 36 64 1 4.415 -192.07 16.270
-purple.bonev.co 151.237.71.222 2 u 14 64 3 5.197 -242.41 219.576
+ntp.netguard.bg 20.39.126.15 2 u 47 64 3 4.570 -162.62 147.576
In my previous post, I brought up a question about Cyrillic symbols in R.
Today I have faced another one.
For example, we want to see our running processes:
test <- system2(command="tasklist",
stdout=TRUE,
stderr=TRUE,
wait = TRUE)
and what we see...
[1] ""
[2] "€¬п ®Ўа § PID €¬п бҐббЁЁ ь бҐ б Џ ¬пвм"
[3] "========================= ======== ================ =========== ============"
[4] "System Idle Process 0 Services 0 24 ЉЃ"
[5] "System 4 Services 0 580 ЉЃ"
***
"Iconv", which helped in the previous task - couldn't help here.
sys.setlocale - too.
What can solve this problem?
I found a solution.
#/c - Carries out the command specified by string and then stops.
command <- function(command,
intern = TRUE,
wait = FALSE)
system(paste("cmd.exe /c", command),
intern = T,
wait = wait)
#changing our charset
command("chcp 1251")
[1] "’ҐЄгй п Є®¤®ў п бва Ёж : 1251" //say bye-bye to mojibake)
# and voila!
command("tasklist")
[1] ""
[2] "Имя образа PID Имя сессии № сеанса Память"
[3] "========================= ======== ================ =========== ============"
[4] "System Idle Process 0 Services 0 24 КБ"
[5] "System 4 Services 0 580 КБ"
[6] "smss.exe 380 Services 0 1 232 КБ"
***
Scenebuilder.exe will not start on my new PC either from IntelliJ, Windows explorer, or command line. It gives no errors and terminates instantly. On a hunch I tried running the included JVM in
C:\Program Files\SceneBuilder\runtime\bin
java --version
I get the log below and it shows an access exception that looks like a bug in the underlying JVM itself, not in the execution of the SceneBuilder code. I've been running JDK 11 on this AMD Ryzen just fine, and there are no DLLs sneaking in that do not belong there. I need help, thanks!
C:\Program Files\SceneBuilder\runtime\bin>java --version
#
# A fatal error has been detected by the Java Runtime Environment:
#
# EXCEPTION_ACCESS_VIOLATION (0xc0000005) at pc=0x00007ff8e3bf8f29, pid=12296, tid=11532
#
# JRE version: (11.0.1+13) (build )
# Java VM: Java HotSpot(TM) 64-Bit Server VM (11.0.1+13-LTS, mixed mode, aot, sharing, tiered, compressed oops, g1 gc, windows-amd64)
# Problematic frame:
# V [jvm.dll+0x1e8f29]
#
# No core dump will be written. Minidumps are not enabled by default on client versions of Windows
#
# An error report file with more information is saved as:
# C:\Users\Tim\AppData\Local\Temp\\hs_err_pid12296.log
#
# If you would like to submit a bug report, please visit:
# http://bugreport.java.com/bugreport/crash.jsp
#
C:\Program Files\SceneBuilder\runtime\bin>type C:\Users\Tim\AppData\Local\Temp\\hs_err_pid12296.log
#
# A fatal error has been detected by the Java Runtime Environment:
#
# EXCEPTION_ACCESS_VIOLATION (0xc0000005) at pc=0x00007ff8e3bf8f29, pid=12296, tid=11532
#
# JRE version: (11.0.1+13) (build )
# Java VM: Java HotSpot(TM) 64-Bit Server VM (11.0.1+13-LTS, mixed mode, aot, sharing, tiered, compressed oops, g1 gc, windows-amd64)
# Problematic frame:
# V [jvm.dll+0x1e8f29]
#
# No core dump will be written. Minidumps are not enabled by default on client versions of Windows
#
# If you would like to submit a bug report, please visit:
# http://bugreport.java.com/bugreport/crash.jsp
#
--------------- S U M M A R Y ------------
Command Line:
Host: AMD Ryzen 5 2600 Six-Core Processor , 12 cores, 15G, Windows 10 , 64 bit Build 18362 (10.0.18362.778)
Time: Sat Apr 25 09:02:07 2020 Eastern Daylight Time elapsed time: 0 seconds (0d 0h 0m 0s)
--------------- T H R E A D ---------------
Current thread (0x000002312e8c6000): JavaThread "Unknown thread" [_thread_in_vm, id=11532, stack(0x0000005029100000,0x0000005029200000)]
Stack: [0x0000005029100000,0x0000005029200000], sp=0x00000050291feee0, free space=1019k
Native frames: (J=compiled Java code, j=interpreted, Vv=VM code, C=native code)
V [jvm.dll+0x1e8f29]
V [jvm.dll+0x1e73d3]
V [jvm.dll+0x37524b]
V [jvm.dll+0x7394a9]
V [jvm.dll+0x3e467d]
V [jvm.dll+0x3e6951]
C [java.exe+0x3603]
C [java.exe+0x178dc]
C [KERNEL32.DLL+0x17bd4]
C [ntdll.dll+0x6ce51]
siginfo: EXCEPTION_ACCESS_VIOLATION (0xc0000005), reading address 0x0000000000000000
Registers:
RAX=0x0000a780aacf8fcc, RBX=0x0000000000000000, RCX=0x0000000000000000, RDX=0x0000000000000006
RSP=0x00000050291feee0, RBP=0x0000000000000000, RSI=0x000002312e8c6000, RDI=0x0000000000000000
R8 =0x0000000000000006, R9 =0x0000000000000006, R10=0x0000000000000006, R11=0x00000050291fe750
R12=0x0000000000000000, R13=0x00007ff8e3ff6d90, R14=0x000002312c602d98, R15=0x00000050291ff938
RIP=0x00007ff8e3bf8f29, EFLAGS=0x0000000000010256
Top of Stack: (sp=0x00000050291feee0)
0x00000050291feee0: 000002312c60db10 00007ff94e71c6c0
0x00000050291feef0: 00000050291ff938 000002312c602d98
0x00000050291fef00: 0000000000000000 0000000000000400
0x00000050291fef10: 00006181910f784b 00007ff8e3ff6d90
0x00000050291fef20: 0000000000000000 00000050291ff938
0x00000050291fef30: 000002312c602d98 00007ff8e3ff6d90
0x00000050291fef40: 0000000000000000 00007ff92e470000
0x00000050291fef50: 00007ff8e4282558 0000000000000000
0x00000050291fef60: 00007ff8e3bf7277 00007ff94e6d1b1c
0x00000050291fef70: 0000000000000000 00007ff8e40745dd
0x00000050291fef80: 0000a780aacf8fcc 000002312c602d98
0x00000050291fef90: 00007ff800000000 00007ff8e3ff6d90
0x00000050291fefa0: 000002312e8c6000 00000050291ff0c0
0x00000050291fefb0: 0000000000000000 00007ff8e3bf73d3
0x00000050291fefc0: 00007ff92e450000 00007ff92e47d088
0x00000050291fefd0: 00000050291ff0c0 000002312e8c6000
Instructions: (pc=0x00007ff8e3bf8f29)
0x00007ff8e3bf8f09: b8 00 00 00 48 8b 05 bc 40 85 00 48 33 c4 48 89
0x00007ff8e3bf8f19: 84 24 a0 00 00 00 48 8b e9 48 83 cb ff 48 ff c3
0x00007ff8e3bf8f29: 80 3c 0b 00 75 f7 33 f6 c6 44 24 30 01 40 38 35
0x00007ff8e3bf8f39: c2 62 88 00 74 17 40 38 35 a3 c9 87 00 75 0e 33
--------------- P R O C E S S ---------------
Threads class SMR info:
_java_thread_list=0x000002312c602d50, length=0, elements={
}
Java Threads: ( => current thread )
Other Threads:
[error occurred during error reporting (printing all threads), id 0xc0000005, EXCEPTION_ACCESS_VIOLATION (0xc0000005) at pc=0x00007ff8e414e1fd]
VM state:not at safepoint (not fully initialized)
VM Mutex/Monitor currently owned by a thread: None
[error occurred during error reporting (printing compressed oops mode), id 0xc0000005, EXCEPTION_ACCESS_VIOLATION (0xc0000005) at pc=0x00007ff8e4163b67]
Deoptimization events (0 events):
No events
Classes redefined (0 events):
No events
Internal exceptions (0 events):
No events
Events (0 events):
No events
Dynamic libraries:
0x00007ff6af5a0000 - 0x00007ff6af5e7000 C:\Program Files\SceneBuilder\runtime\bin\java.exe
0x00007ff9512e0000 - 0x00007ff9514d0000 C:\WINDOWS\SYSTEM32\ntdll.dll
0x00007ff950230000 - 0x00007ff9502e2000 C:\WINDOWS\System32\KERNEL32.DLL
0x00007ff94e6c0000 - 0x00007ff94e963000 C:\WINDOWS\System32\KERNELBASE.dll
0x00007ff94fb00000 - 0x00007ff94fba3000 C:\WINDOWS\System32\ADVAPI32.dll
0x00007ff9502f0000 - 0x00007ff95038e000 C:\WINDOWS\System32\msvcrt.dll
0x00007ff951200000 - 0x00007ff951297000 C:\WINDOWS\System32\sechost.dll
0x00007ff94f9e0000 - 0x00007ff94fb00000 C:\WINDOWS\System32\RPCRT4.dll
0x00007ff94f390000 - 0x00007ff94f524000 C:\WINDOWS\System32\USER32.dll
0x00007ff94f2e0000 - 0x00007ff94f301000 C:\WINDOWS\System32\win32u.dll
0x00007ff94f530000 - 0x00007ff94f556000 C:\WINDOWS\System32\GDI32.dll
0x00007ff94e520000 - 0x00007ff94e6b4000 C:\WINDOWS\System32\gdi32full.dll
0x00007ff94f240000 - 0x00007ff94f2de000 C:\WINDOWS\System32\msvcp_win.dll
0x00007ff94e270000 - 0x00007ff94e36a000 C:\WINDOWS\System32\ucrtbase.dll
0x00007ff942260000 - 0x00007ff9424e5000 C:\WINDOWS\WinSxS\amd64_microsoft.windows.common-controls_6595b64144ccf1df_6.0.18362.778_none_e6c6b761130d4fb8\COMCTL32.dll
0x00007ff947e60000 - 0x00007ff947e6a000 C:\WINDOWS\SYSTEM32\VERSION.dll
0x00007ff94f640000 - 0x00007ff94f976000 C:\WINDOWS\System32\combase.dll
0x00007ff94e370000 - 0x00007ff94e3f0000 C:\WINDOWS\System32\bcryptPrimitives.dll
0x00007ff950df0000 - 0x00007ff950e1e000 C:\WINDOWS\System32\IMM32.DLL
0x00007ff94aa90000 - 0x00007ff94aaa6000 C:\Program Files\SceneBuilder\runtime\bin\vcruntime140.dll
0x00007ff932a30000 - 0x00007ff932ada000 C:\Program Files\SceneBuilder\runtime\bin\msvcp140.dll
0x00007ff8e3a10000 - 0x00007ff8e4552000 C:\Program Files\SceneBuilder\runtime\bin\server\jvm.dll
0x00007ff950220000 - 0x00007ff950228000 C:\WINDOWS\System32\PSAPI.DLL
0x00007ff94ae30000 - 0x00007ff94ae54000 C:\WINDOWS\SYSTEM32\WINMM.dll
0x00007ff93c080000 - 0x00007ff93c089000 C:\WINDOWS\SYSTEM32\WSOCK32.dll
0x00007ff950d80000 - 0x00007ff950def000 C:\WINDOWS\System32\WS2_32.dll
0x00007ff94ae00000 - 0x00007ff94ae2d000 C:\WINDOWS\SYSTEM32\WINMMBASE.dll
0x00007ff94e4d0000 - 0x00007ff94e51a000 C:\WINDOWS\System32\cfgmgr32.dll
0x00007ff94e250000 - 0x00007ff94e261000 C:\WINDOWS\System32\kernel.appcore.dll
0x00007ff94a980000 - 0x00007ff94a991000 C:\Program Files\SceneBuilder\runtime\bin\verify.dll
0x00007ff93d1a0000 - 0x00007ff93d394000 C:\WINDOWS\SYSTEM32\DBGHELP.DLL
0x00007ff93cf30000 - 0x00007ff93cf5a000 C:\WINDOWS\SYSTEM32\dbgcore.DLL
0x00007ff92e470000 - 0x00007ff92e499000 C:\Program Files\SceneBuilder\runtime\bin\java.dll
0x00007ff92e450000 - 0x00007ff92e466000 C:\Program Files\SceneBuilder\runtime\bin\zip.dll
0x00007ff94aa80000 - 0x00007ff94aa8a000 C:\Program Files\SceneBuilder\runtime\bin\jimage.dll
dbghelp: loaded successfully - version: 4.0.5 - missing functions: none
symbol engine: initialized successfully - sym options: 0x614 - pdb path: .;C:\Program Files\SceneBuilder\runtime\bin;C:\WINDOWS\SYSTEM32;C:\WINDOWS\WinSxS\amd64_microsoft.windows.common-controls_6595b64144ccf1df_6.0.18362.778_none_e6c6b761130d4fb8;C:\Program Files\SceneBuilder\runtime\bin\server
VM Arguments:
java_command: <unknown>
java_class_path (initial): <not set>
Launcher Type: SUN_STANDARD
[Global flags]
uint G1ConcRefinementThreads = 10 {product} {ergonomic}
uintx GCDrainStackTargetSize = 64 {product} {ergonomic}
size_t InitialHeapSize = 267632960 {product} {ergonomic}
size_t MaxHeapSize = 4282127360 {product} {ergonomic}
uintx ReservedCodeCacheSize = 251658240 {pd product} {ergonomic}
bool SegmentedCodeCache = true {product} {ergonomic}
bool UseCompressedClassPointers = true {lp64_product} {ergonomic}
bool UseCompressedOops = true {lp64_product} {ergonomic}
bool UseG1GC = true {product} {ergonomic}
bool UseLargePagesIndividualAllocation = false {pd product} {ergonomic}
Logging:
Log output configuration:
#0: stdout all=warning uptime,level,tags
#1: stderr all=off uptime,level,tags
Environment Variables:
JAVA_HOME=C:\Users\Tim\jdk-13.0.2
PATH=...
USERNAME=Tim
OS=Windows_NT
PROCESSOR_IDENTIFIER=AMD64 Family 23 Model 8 Stepping 2, AuthenticAMD
--------------- S Y S T E M ---------------
OS: Windows 10 , 64 bit Build 18362 (10.0.18362.778)
CPU:total 12 (initial active 12)
Memory: 4k page, system-wide physical 16335M (7401M free)
TotalPageFile size 38863M (AvailPageFile size 26823M)
current process WorkingSet (physical memory assigned to process): 8M, peak: 8M
current process commit charge ("private bytes"): 3M, peak: 3M
vm_info: Java HotSpot(TM) 64-Bit Server VM (11.0.1+13-LTS) for windows-amd64 JRE (11.0.1+13-LTS), built on Oct 6 2018 13:20:16 by "mach5one" with MS VC++ 15.5 (VS2017)
END.
I am running neo-4j 1.8.2 on a remote unix box. I am using this jar (https://github.com/jexp/batch-import/downloads).
nodes.csv is same as given in example:
name age works_on
Michael 37 neo4j
Selina 14
Rana 6
Selma 4
rels.csv is like this:
start end type since counter:int
1 2 FATHER_OF 1998-07-10 1
1 3 FATHER_OF 2007-09-15 2
1 4 FATHER_OF 2008-05-03 3
3 4 SISTER_OF 2008-05-03 5
2 3 SISTER_OF 2007-09-15 7
But i am getting this exception :
Using Existing Configuration File
Total import time: 0 seconds
Exception in thread "main" java.util.NoSuchElementException
at java.util.StringTokenizer.nextToken(StringTokenizer.java:332)
at org.neo4j.batchimport.Importer$Data.split(Importer.java:156)
at org.neo4j.batchimport.Importer$Data.update(Importer.java:167)
at org.neo4j.batchimport.Importer.importNodes(Importer.java:226)
at org.neo4j.batchimport.Importer.main(Importer.java:83)
I am new to neo4j, was checking if this importer can save some coding effort.
It would be great if someone can point to the probable mistake.
Thanks for help!
--Edit:--
My nodes.csv
name dob city state s_id balance desc mgr_primary mgr_secondary mgr_tertiary mgr_name mgr_status
John Von 8/11/1928 Denver CO 1114-010 7.5 RA 0023-0990 0100-0110 Doozman Keith Active
my rels.csv
start end type since status f_type f_num
2 1 address_of
1 3 has_account 5 Active
4 3 f_of Primary 0111-0230
Hi I had some issues in the past with the batch import script.
The formating of your file must be very rigorous, which means :
no extra spaces where not expected, like the ones I see in the first line of your rels.csv before "start"
no multiple spaces in place of the tab. If your files are exactly like what you've copied here, you have 4 spaces instead of on tab, and this is not going to work, as the script uses a tokenizer looking for tabs !!!
I had this issue because I always convert tabs to 4 spaces, and once I understood that, I stopped doing it for my csv !
Lets say you want 5 threads to process data simultaneous. Also assume, you have 89 tasks to process.
Off the bat you know 89 / 5 = 17 with a remainder of 4. The best way to split up tasks would be to have 4 (the remainder) threads process 18 (17+1) tasks each and then have 1 (# threads - remainder) thread to process 17.
This will eliminate the remainder. Just to verify:
Thread 1: Tasks 1-18 (18 tasks)
Thread 2: Tasks 19-36 (18 tasks)
Thread 3: Tasks 37-54 (18 tasks)
Thread 4: Tasks 55-72 (18 tasks)
Thread 5: Tasks 73-89 (17 tasks)
Giving you a total of 89 tasks completed.
I need a way of getting the start and ending range of each thread mathematically/programmability; where the following should print the exact thing I have listed above:
$NumTasks = 89
$NumThreads = 5
$Remainder = $NumTasks % $NumThreads
$DefaultNumTasksAssigned = floor($NumTasks / $NumThreads)
For $i = 1 To $NumThreads
if $i <= $Remainder Then
$NumTasksAssigned = $DefaultNumTasksAssigned + 1
else
$NumTasksAssigned = $DefaultNumTasksAssigned
endif
$Start = ??????????
$End = ??????????
print Thread $i: Tasks $Start-$End ($NumTasksAssigned tasks)
Next
This should also work for any number of $NumTasks.
Note: Please stick to answering the math at hand and avoid suggesting or assuming the situation.
Why? Rather then predetermining the scheduling order, stick all of the tasks on a queue, and then have each thread pull them off one by one when they're ready. Then your tasks will basically run "as fast as possible".
If you pre-allocated, then one thread may be doing a particularly long bit of processing and blocking the running of all the tasks stuck behind it. Using the queue, as each task finishes and a thread frees up, it grabs the next task and keeps going.
Think of it like a bank with 1 line per teller vs one line and a lot of tellers. In the former, you might get stuck behind the person depositing coins and counting it out one by one, the latter you get to the next available teller, while Mr. PocketChange counts away.
I second Will Hartung 's remark. You may just feed them one task at a time (or a few tasks at a at a time, depending if there's much overhead, i.e. if individual tasks get typically completed very fast, relative to the cost of starting/recycling threads). Your subsequent comments effectively explain that your "threads" carry a heavy creation cost, and hence your desire to feed them once with as much work as possible, rather than wasting time creating new "thread" each fed a small amount of work.
Anyway... going to the math question...
If you'd like to assign tasks just once, the following formula, plugged in lieu of the the ????????? in your logic, should do the trick:
$Start = 1
+ (($i -1) * ($DefaultNumTasksAssigned + 1)
- (floor($i / ($Remainder + 1)) * ($i - $Remainder))
$End = $Start + $NumTasksAssigned -1
The formula is explained as follow:
1 is for the fact that your display / logic is one-based not zero-based
The second term is because we generally add ($DefaultNumTasksAssigned + 1) with each iteration.
The third term provides a correction for the last few iterations.
Its first part, (floor($i / ($Remainder + 1)) provides 0 until $i reaches the first thread
that doesn't receive one extra task, and 1 thereafter.
The second part express by how much we need to correct.
The formula for $End is easier, the only trick is the minus 1, it is because the Start and End values are inclusive (so for example between 1 an 19 there are 19 tasks not 18)
The following slightly modified piece of logic should also work, it avoids the "fancy" formula by keeping a running tab of the $Start variable, rather than recomputing it each time..
$NumTasks = 89
$NumThreads = 5
$Remainder = $NumTasks % $NumThreads
$DefaultNumTasksAssigned = floor($NumTasks / $NumThreads)
$Start = 1
For $i = 1 To $NumThreads
if $i <= $Remainder Then // fixed here! need <= because $i is one-based
$NumTasksAssigned = $DefaultNumTasksAssigned + 1
else
$NumTasksAssigned = $DefaultNumTasksAssigned
endif
$End = $Start + $NumTasksAssigned -1
print Thread $i: Tasks $Start-$End ($NumTasksAssigned tasks)
$Start = $Start + $NumTasksAssigned
Next
Here's a Python transcription of the above
>>> def ShowWorkAllocation(NumTasks, NumThreads):
... Remainder = NumTasks % NumThreads
... DefaultNumTasksAssigned = math.floor(NumTasks / NumThreads)
... Start = 1
... for i in range(1, NumThreads + 1):
... if i <= Remainder:
... NumTasksAssigned = DefaultNumTasksAssigned + 1
... else:
... NumTasksAssigned = DefaultNumTasksAssigned
... End = Start + NumTasksAssigned - 1
... print("Thread ", i, ": Tasks ", Start, "-", End, "(", NumTasksAssigned,")")
... Start = Start + NumTasksAssigned
...
>>>
>>> ShowWorkAllocation(89, 5)
Thread 1 : Tasks 1 - 18 ( 18 )
Thread 2 : Tasks 19 - 36 ( 18 )
Thread 3 : Tasks 37 - 54 ( 18 )
Thread 4 : Tasks 55 - 72 ( 18 )
Thread 5 : Tasks 73 - 89 ( 17 )
>>> ShowWorkAllocation(11, 5)
Thread 1 : Tasks 1 - 3 ( 3 )
Thread 2 : Tasks 4 - 5 ( 2 )
Thread 3 : Tasks 6 - 7 ( 2 )
Thread 4 : Tasks 8 - 9 ( 2 )
Thread 5 : Tasks 10 - 11 ( 2 )
>>>
>>> ShowWorkAllocation(89, 11)
Thread 1 : Tasks 1 - 9 ( 9 )
Thread 2 : Tasks 10 - 17 ( 8 )
Thread 3 : Tasks 18 - 25 ( 8 )
Thread 4 : Tasks 26 - 33 ( 8 )
Thread 5 : Tasks 34 - 41 ( 8 )
Thread 6 : Tasks 42 - 49 ( 8 )
Thread 7 : Tasks 50 - 57 ( 8 )
Thread 8 : Tasks 58 - 65 ( 8 )
Thread 9 : Tasks 66 - 73 ( 8 )
Thread 10 : Tasks 74 - 81 ( 8 )
Thread 11 : Tasks 82 - 89 ( 8 )
>>>
I think you've solved the wrong half of your problem.
It's going to be virtually impossible to precisely determine the time it will take to complete all your tasks, unless all of the following are true:
your tasks are 100% CPU-bound: that is, they use 100% CPU while running and don't need to do any I/O
none of your tasks have to synchronize with any of your other tasks in any way
you have exactly as many threads as you have CPUs
the computer that is running these tasks is not performing any other interesting tasks at the same time
In practice, most of the time, your tasks are I/O-bound rather than CPU-bound: that is, you are waiting for some external resource such as reading from a file, fetching from a database, or communicating with a remote computer. In that case, you only make things worse by adding more threads, because they're all contending for the same scarce resource.
Finally, unless you have some really weird hardware, it's unlikely you can actually have exactly five threads running simultaneously. (Usually processor configurations come in multiples of at least two.) Usually the sweet spot is at about 1 thread per CPU if your tasks are very CPU-bound, about 2 threads per CPU if the tasks spend half their time being CPU-bound and half their time doing IO, etc.
tl;dr: We need to know a lot more about what your tasks and hardware look like before we can advise you on this question.