- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
Hello,
I was running a cilk-enabled program on my 64-bit Windows-7 system and hit this error:
.\\sched.c:1185: cilk assertion failed: w->l->throttle_countdown != 0
The processor is an i7-2720QM (quad-core with hyperthreading = up to 8 threads).
The process was only using about 1GB RAM, and is compiled for intel64 anyway, so memory shouldn't be a factor here (in the past I was getting assertions due to running out of memory for 32-bit apps).
Any ideas what this means or how to fix it?
I'm compiling with Intel C++ Intel 64 Compiler XE for applications running on Intel 64, Version 12.0.4.196 Build 20110427.
thanks very much,
Daniel Faken
I was running a cilk-enabled program on my 64-bit Windows-7 system and hit this error:
.\\sched.c:1185: cilk assertion failed: w->l->throttle_countdown != 0
The processor is an i7-2720QM (quad-core with hyperthreading = up to 8 threads).
The process was only using about 1GB RAM, and is compiled for intel64 anyway, so memory shouldn't be a factor here (in the past I was getting assertions due to running out of memory for 32-bit apps).
Any ideas what this means or how to fix it?
I'm compiling with Intel C++ Intel 64 Compiler XE for applications running on Intel 64, Version 12.0.4.196 Build 20110427.
thanks very much,
Daniel Faken
Link Copied
2 Replies
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
Thiswas fixed in12.0.5. The throttle countdown was an attempt to improve the performance ofcode that enters/leaves Cilk quickly. In the Update 5 release we reworked the code to avoid the cache thrashing at the root of the problem.
- Barry
- Barry
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
Thank you, Barry!
I will try the latest update.
I will try the latest update.
Reply
Topic Options
- Subscribe to RSS Feed
- Mark Topic as New
- Mark Topic as Read
- Float this Topic for Current User
- Bookmark
- Subscribe
- Printer Friendly Page