sorry. I grabbed the wrong version to attach before. The only change was to use equals instead of == to compare Strings. This is the fixed one. (See attached file: AES.x10)
After fixing the string comparision, it ran for me on both backends on
Linux/x86_64.
--dave
|------------>
| From: |
|------------>
>--------------------------------------------------------------------------------------------------------------------------------------------------|
|Anh <a...@pacbell.net>
|
>--------------------------------------------------------------------------------------------------------------------------------------------------|
|------------>
| To: |
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>--------------------------------------------------------------------------------------------------------------------------------------------------|
|David P Grove/Watson/IBM@IBMUS, "x10-users@lists.sourceforge.net"
<x10-users@lists.sourceforge.net>,
|
>--------------------------------------------------------------------------------------------------------------------------------------------------|
|------------>
| Date: |
|------------>
>--------------------------------------------------------------------------------------------------------------------------------------------------|
|11/04/2011 05:42 PM
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| Subject: |
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|Re: [X10-users] AES in X10
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Hi,
I think you attached wrong file. there is no changes the attachment. So
were you able to run it under Native back-end?
This is what i found out, so running with compiled version of X10 (instead
of pre-compiled version), this is what I got for output. Native version is
way longer than Java-backend, and java-version of AES is 21seconds for 18M
file. I expect Native version would run faster than Java-Backend
----------
odin000960361:Desktop anhtrinh$ x10 AES -e 2 PPSTUFF/zip18mb.zip
Unable to load x10rt_sockets. Forcing single place execution
Unable to load x10rt_sockets. Forcing single place execution
0
1
25629 milliseconds
Done ENC
odin000960361:Desktop anhtrinh$ ./AES_O_NC -e 2 PPSTUFF/zip18mb.zip
1
0
71156 milliseconds
GC Warning: Repeated allocation of very large block (appr. size 18862080):
May lead to memory leak and poor performance.
Done ENC
-------------------
Thanks
Anh
From: David P Grove <gro...@us.ibm.com>
To: Anh <a...@pacbell.net>
Sent: Friday, November 4, 2011 11:14 AM
Subject: Re: [X10-users] AES in X10
A somewhat obscure problem, but a bug in your code.
In the run method you had
if( this.op == "ENC" ){
this.output = this.encrypt(this.input, this.key.bytes());
}else if(this.op == "DEC" ){
this.output = this.decrypt(this.input, this.key.bytes());
}else{
}
Strings are objects, so this was doing pointer equality. You really should
do this.op.equals("ENC"). You were getting lucky with the Java backend
because Java happens to share String objects between literals in the same
class file. The Native backend doesn't do this.
I changed to equals and it ran. Modified version attached.
--dave
<<inline: graycol.gif>>
<<inline: ecblank.gif>>
AES.x10
Description: Binary data
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