I'm using McPAT, a tool for estimating CPU power, however, it seems the integer multiplier is counted as a special function unit. Why is that? Shouldnt it be in the integer unit instead? And shouldn't special function unit only be concerned with transcendental functions such as sin, cos, rcp?
Is integer multiplier physically in integer unit or special function unit?
239 Views Asked by zheric At
1
There are 1 best solutions below
Related Questions in CPU
- the end of the I/O operation is notified to the system by an interrupt.how much system time do the mentioned operations occupy?
- Python process CPU usage going high suddenly. how to detect the place?
- Problem on CPU scheduling algorithms in OS
- Will a processor with such a defect work?
- Google Chrome is consuming a lot of CPU on a video call?
- access fan and it's speed, in linux mint on acer predator helios 300
- I am trying to calculate the cpu percentage a certain process take but the values are very differnt than that of the task manger
- Can out-of-order execution of CPU affect the order of new operator in C++?
- Unexpected OS Shutdown
- Maximum CPU Voltage reading
- ClickHouse Materialized View consuming a lot of Memory and CPU
- Use of OpenVINO on a computer with 2 physical cpus
- How is cpu's state saved by os without altering it?
- why the CPU utilization and other indicators collected by glances are larger than those collected?
- Python serial communication causing high CPU Usage when baudrate is 1000000
Related Questions in INTEGER-ARITHMETIC
- How to divide a nonnegative variable integer by a constant fixed-point rational ≥1 without overflow (at all, if possible)?
- GMP Library: unsigned/signed arithmetics
- Emulate Javascript's 32bit signed integer arithmetic to C (or Perl) - some discrepancies
- Safely check if signed multiplication would overflow in C++17
- Logarithm of a positive number result in minus infinity python
- Matching arithmetic expressions in SWI-Prolog?
- Can one emulate bitwise arithmetic "and" or "or" using only non-bitwise operations?
- What is the minimum odd number representable in a 32-bit float, written in both decimal and binary?
- rust relative array indexing
- What does mean ARR in the half place in C?
- Why is X staying = 1?
- Python Overflow Warning in Scalar Add
- Does (++i)+(++i) have the defined behavior in Java
- Why did Matlab choose saturation arithmetic for integers?
- Unexpected behaviour on underflow of unsigned char
Trending Questions
- UIImageView Frame Doesn't Reflect Constraints
- Is it possible to use adb commands to click on a view by finding its ID?
- How to create a new web character symbol recognizable by html/javascript?
- Why isn't my CSS3 animation smooth in Google Chrome (but very smooth on other browsers)?
- Heap Gives Page Fault
- Connect ffmpeg to Visual Studio 2008
- Both Object- and ValueAnimator jumps when Duration is set above API LvL 24
- How to avoid default initialization of objects in std::vector?
- second argument of the command line arguments in a format other than char** argv or char* argv[]
- How to improve efficiency of algorithm which generates next lexicographic permutation?
- Navigating to the another actvity app getting crash in android
- How to read the particular message format in android and store in sqlite database?
- Resetting inventory status after order is cancelled
- Efficiently compute powers of X in SSE/AVX
- Insert into an external database using ajax and php : POST 500 (Internal Server Error)
Popular # Hahtags
Popular Questions
- How do I undo the most recent local commits in Git?
- How can I remove a specific item from an array in JavaScript?
- How do I delete a Git branch locally and remotely?
- Find all files containing a specific text (string) on Linux?
- How do I revert a Git repository to a previous commit?
- How do I create an HTML button that acts like a link?
- How do I check out a remote Git branch?
- How do I force "git pull" to overwrite local files?
- How do I list all files of a directory?
- How to check whether a string contains a substring in JavaScript?
- How do I redirect to another webpage?
- How can I iterate over rows in a Pandas DataFrame?
- How do I convert a String to an int in Java?
- Does Python have a string 'contains' substring method?
- How do I check if a string contains a specific word?
Integer multiplication is often pipelined, making it take multiple cycles to complete. As such, breaking it out into its own functional unit allows other integer operations (e.g, add/sub and bitwise operations) to run in a single cycle, possibly even while a multiply is in flight.
It's certainly not true that it's always a separate functional unit, though! Some CPUs (even small ones, like the ARM Cortex-M3 and M4 microcontrollers) have single-cycle multiply, which could very well be handled as part of the same FU as other integer operations.