I hope another Ubuntu user has tried to run Intel power gadget and knows what problem I am having. I am trying to install the power gadget, running the make file i get an error message: /usr/lib/power_gadget/rapl.c:516: undefined reference to `log' This line refers to the line in a.c file: return (log((double)(time / RAPL_TIME_UNIT)) - A_LNF[F]) / LN2; Is this log function being called correctly? Am I missing a dependency on my Ubuntu setup? Is there perhaps a missing library file in my download? Thanks in advance for any help Regards Roz Edit, the make file is below: CFLAGS=-g all: rapl_lib_shared rapl_lib_static power_gadget_static rapl_lib_shared: gcc $(CFLAGS) -fpic -c msr.c cpuid.c rapl.c gcc $(CFLAGS) -shared -o librapl.so msr.o cpuid.o rapl.o rapl_lib_static: gcc $(CFLAGS) -c msr.c cpuid.c rapl.c ar rcs librapl.a msr.o cpuid.o rapl.o power_gadget_static: gcc $(CFLAGS) power_gadget.c -I. -lm -o power_gadget./librapl.a power_gadget: gcc $(CFLAGS) power_gadget.c -I. -lm -lrapl -o power_gadget gprof: CFLAGS = -pg gprof: all./power_gadget -e 100 -d 60 >/dev/null 2>&1 gprof power_gadget >power_gadget.gprof rm -f gmon.out make clean clean: rm -f power_gadget librapl.so librapl.a msr.o cpuid.o rapl.o.

I got the same problem and managed to solve it by simply change the -lm flag to the end off the GCC command. So the Makefile now looks like this: CFLAGS=-g all: rapl_lib_shared rapl_lib_static power_gadget_static rapl_lib_shared: gcc $(CFLAGS) -fpic -c msr.c cpuid.c rapl.c gcc $(CFLAGS) -shared -o librapl.so msr.o cpuid.o rapl.o rapl_lib_static: gcc $(CFLAGS) -c msr.c cpuid.c rapl. John Mayer ? Where The Light Is Dvd Download Free. c ar rcs librapl.a msr.o cpuid.o rapl.o power_gadget_static: gcc $(CFLAGS) power_gadget.c -I. -o power_gadget./librapl.a -lm power_gadget: gcc $(CFLAGS) power_gadget.c -I. -lrapl -o power_gadget -lm gprof: CFLAGS = -pg gprof: all./power_gadget -e 100 -d 60 >/dev/null 2>&1 gprof power_gadget >power_gadget.gprof rm -f gmon.out make clean clean: rm -f power_gadget librapl.so librapl.a msr.o cpuid.o rapl.o.

How To Install Gprof On Ubuntu Iso. You can download the source code to your. The steps to install the change root are quite similar to the change root. One way to optimise code is to dynamically analyse it for call-time and execution delays in order to find the bottlenecks in the execution. In Linux, Gprof can help to profile the code you compiled by using GCC. How To Install Gprof On Ubuntu Linux. One must download the Eclipse CDT version for C++ which is platform dependent and processor word size dependent (3.