Intel® Academic Community Forum

Is it possible to disable or not use the Last Level Cache in Intel IvyBridge CPU?


I want to do an experiment which test the performance degradation and effect on the scheduling when CPU has no shared Last Level Cache.

I was able to "disable" all caches, i.e., not allowing the OS to use the caches. 

However, I have to do some experiment when CPU only has the private L1 and L2 cache, and does not use the L3 shared cache. 

So my question is:

Is it possible to not use the L3 cache but use the L1 and L2 cache for the IvyBridge CPU? 

I need a software for simulating Clovertown

Hi all,

I am researching on CMP scheduling. I need a software to simulate Clovertown where is able to run my muli-threaded applications. The software must support cohorency protocols and its simulatio speed is high. I have tested various simulators, but some of them havenot satisfied my needs or thier simualtion speed was slow. Could you help me to find a suitable simulator?


Working principle of Intel (R) Processor Diagnostic Tool


My name is Alexey,

I'm going to write a term paper on Error reaviling in processor functioning. Could you be so kind to consult me about Intel(R) Processor Diagnostic Tool.

I took advantage of the proposed program to test CPU, but for the completion of this work I need to provide technical documentation and and function of software that was used.I would be very grateful, if you could help me in this matter.

Inconsistency in the IPCC RFP

The RFP page for Intel Parallel computing centers has Dec 2nd has the deadline for submitting proposals:

while, the top-level academic program page has Dec 1st as the deadline:

Does anyone know if the deadline was extended by a day, or if it was a typo in either one of the pages?


how can solve fortran running error like '^K^@^@^@^A^@^@^@^@^@^@^@%^@^@^B'

Hello profs,

     I write a fortran script and compile it with intel fortran compiler. Then I run it and mostly it works so well. the functin of scripts is to read some strings from the files containing losts of lines.

     but when it read one of the piles of files, error reported 'forrtl: severe (64): input conversion error, unit -5, file Internal Formatted Read'.

     I checked the codes and find the issue attributed to the line ' read(string, '(f14.3)') xfloatn' (where, string set to character*16, xfloatn to real*8). 

Learning the ropes of intel processors!

Hello! My name is Matthew Gillen, I am 13 years of age, and I am still new to processors. I have a slight basic understanding of ghz and mhz, but that is it. I am looking into getting into MicroProcessor engineering. I would love to talk to someone and learn more, if so please leave some info on how i can contact you.

Thank you for reading!

Compiling MPICH 3.0.4 with intel's compilers

Hi everyone,

I'm have compiled mpich-3.0.4 using ifort and icc in ubuntu 12.04 fallowing this sequence:

export CC=icc
export CXX=icpc
export CPP='icc -E'
export CXXCPP='icpc -E'
export F77=ifort
export FC=ifort
export CFLAGS='-O3 -xHost -ip -no-prec-div -static-intel'
export CXXFLAGS='-O3 -xHost -ip -no-prec-div -static-intel'
export FFLAGS='-O3 -xHost -ip -no-prec-div -static-intel'

./configure --prefix=/usr/local


make install

Announcing new Security Projects for Academia

The Intel Academic Program announces new software projects for security coursework, labs and experiments. These tools support the Intel Security Curriculum Series and can be used in general aspects of security instruction. Peruse our first projects on the Advanced Encryption Standard (AES), Trusted Boot, Identity Protection and Digital Random Number Generator (DRNG) here on the Security tab:  

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