Hi, i wanted to implement an example from the Cilk Plus User Guide: Page 37, Exception Handling, where they show, how the implicit sync in front of a try-block could limit the parallelism of the program. My code is as follows:
void mysleep(int a) {
sleep(a);
}
int main(int argc, char ** argv) {
cilk_spawn mysleep(5);
try {
cilk_spawn mysleep(5);
mysleep(5);
}
catch(int err) {
}
}
I am writting code in C90 and using cilkplus. I use a library which define TRY, CATCH macros to simulate the try catch behaviour similar to C++. Now the following piece of code compiles and runs as expected:
int j ;
for ( j=0; j<some_constant; ++j)
{
TRY {
//some code which throws exception
} CATCH(SQLException) {
//some action.
}
END_TRY;
}
but when the same code is run wth cilk_for keword, I get compile error
The code:
Hello,I have recently installed VS2010 and Intel Parallel Studio XE. I have been trying to use the ArrayNotation example from the Intel website.I am unable to resolve the following error: "ERROR: identifier __assume_aligned is undefined"I'm sure there is something basic I need to due, but I have been unable to sort it out.Additionally, the array notation in the code is showing up as red underline as if it isn't recognized syntax - How can I resolve this.Any help would be greatly apprciated, I have been pulling my hair out.Regards,Brad
Hello all
I want to move from tests with cilk to an actual program .I would like from someone who has worked in a program with cilk just to explain the procedure( steps ) to follow in order to end up with a cilk program.
What i want to say is in what phase of my program should i import cilk.Should i finish it first as a serial program see that everything is working as expected or should import cilk before the serial program is ready.
Hi,
I wanted to write my own reducer in clk plus to accomplish some task. Are there some good tutorials that I can read to get mire information about reducers. The documentation does not provide enough details is what I feel.
Thanks.
Aman
I want to know if there is any way we can change the stack size per cilk thread that will be spawned.
Hello, I wonder if anyone has encountered this, I downloaded the new Cilk View:
Running on one program on one core (CILK_NWORKERS=1) I obtained the following output:
Hello all
Im trying to use array notation in my code but i dont see any kind of improvment.
It takes the same ammount of time to do the same work in parallel and in serial.
And even though i have 4 workers the parallel coderuns with only one worker in one core.
These are the warnings it gives me
cc1plus: warning: label if_stmt_label_00001 defined but not used [-Wunused-label]
cc1plus: warning: label body_label_00001 defined but not used [-Wunused-label]
cc1plus: warning: label exit_label_00001 defined but not used [-Wunused-label]
Hello
Im using this piece of code in my program just to check time differences bettween the serial program and parallel by changing the CILK_NWORKERS
No matter what is the value of CILK_NWORKERS( 4, 8, 16 ) half of the times the program runs correctly and half of the times gives this error.
/cilkplus/libcilkrts/runtime/local_state.c:42: cilk assertion failed: fcn
Aborted (core dumped)
or seg fault
Hello all
I would like to ask if there are any good tutorials about cilk plus to start with and any kind of source code to use as example.
I managed to find some pdfs but since i dont know much about cilk i would like to start from the beggining.
Anyone who has anything fro share please give a link.
Thanks a lot
