With regards to the query “128-Bit Precision with GCC” in the Best of Tech column of the December 2001 issue, the reply was neither correct nor helpful—GMP is not the equivalent and using GMP means rewriting code. Some compilers, AIX amongst them, will carry out calculations using 64 bits (or 128 bits, depending on the processor) with the appropriate option. (Using this, means that the product of two 32-bit numbers will always fit within an int. No code modification is needed.) GMP, however, is a multi-precision package that defines certain data structures wherein the multi-precision numbers are put. To use it, you must extensively rewrite your code. Some compilers, including gcc, accept the “long long” extension and use 64 bits for calculation but that still requires modifying your code and raises portability questions. My answer would be that, sadly, there is no equivalent without some sort of code modification. Such an option to gcc would be nice, though.
Upon rereading my letter [above], I realized that it reads far harsher than I intended. Both the column and the individual answering the query have done your readers good service in the past. I did not mean to slight either, and I apologise if anyone took amiss. I merely wished to indicate that the solution is by no means simple.
Fast/Flexible Linux OS Recovery
On Demand Now
In this live one-hour webinar, learn how to enhance your existing backup strategies for complete disaster recovery preparedness using Storix System Backup Administrator (SBAdmin), a highly flexible full-system recovery solution for UNIX and Linux systems.
Join Linux Journal's Shawn Powers and David Huffman, President/CEO, Storix, Inc.
Free to Linux Journal readers.Register Now!
- Download "Linux Management with Red Hat Satellite: Measuring Business Impact and ROI"
- Chris Birchall's Re-Engineering Legacy Software (Manning Publications)
- The Italian Army Switches to LibreOffice
- Linux Mint 18
- Petros Koutoupis' RapidDisk
- ServersCheck's Thermal Imaging Camera Sensor
- Oracle vs. Google: Round 2
- Privacy and the New Math
- The FBI and the Mozilla Foundation Lock Horns over Known Security Hole
Until recently, IBM’s Power Platform was looked upon as being the system that hosted IBM’s flavor of UNIX and proprietary operating system called IBM i. These servers often are found in medium-size businesses running ERP, CRM and financials for on-premise customers. By enabling the Power platform to run the Linux OS, IBM now has positioned Power to be the platform of choice for those already running Linux that are facing scalability issues, especially customers looking at analytics, big data or cloud computing.
￼Running Linux on IBM’s Power hardware offers some obvious benefits, including improved processing speed and memory bandwidth, inherent security, and simpler deployment and management. But if you look beyond the impressive architecture, you’ll also find an open ecosystem that has given rise to a strong, innovative community, as well as an inventory of system and network management applications that really help leverage the benefits offered by running Linux on Power.Get the Guide