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[@l /tmp/cpufp]# gcc -pthread -O3 -c smtl.c
smtl.c: In function ‘smtl_begin_tasks’:
smtl.c:331:5: error: ‘for’ loop initial declarations are only allowed in C99 mode
for (int i = 0; i < sh->num_threads; i++)
^
smtl.c:331:5: note: use option -std=c99 or -std=gnu99 to compile your code
[@l /tmp/cpufp]#
[@l /tmp/cpufp]# gcc -pthread -O3 -c smtl.c -std=c99
[@l /tmp/cpufp]#

The librt library needs to be specified exlicitly for systems with old glibc.
On my machine with gcc 4.8.5 and glibc 2.12, adding the -lrt flag at the end of the last command in gen.sh resolves the compilation error.

The compilation errors are listed below.

[dongxiao@695189 cpufp]$ ./build.sh
smtl.c: In function ‘smtl_begin_tasks’:
smtl.c:331:5: error: ‘for’ loop initial declarations are only allowed in C99 mode
for (int i = 0; i < sh->num_threads; i++)
^
smtl.c:331:5: note: use option -std=c99 or -std=gnu99 to compile your code
cpufp_x86.o: In function cpufp_x86_fma': cpufp_x86.c:(.text+0xb9): undefined reference to clock_gettime'
cpufp_x86.c:(.text+0xf7): undefined reference to clock_gettime' cpufp_x86.c:(.text+0x194): undefined reference to clock_gettime'
cpufp_x86.c:(.text+0x1d4): undefined reference to clock_gettime' cpufp_x86.c:(.text+0x25e): undefined reference to clock_gettime'
cpufp_x86.o:cpufp_x86.c:(.text+0x282): more undefined references to `clock_gettime' follow
collect2: error: ld returned 1 exit status

compile error on wsl2:
asm/cpufp_kernel_x86_avx_vnni.S:16: Error: unsupported instruction `vpdpbusd'

cat /proc/cpuinfo
flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 ss ht syscall nx pdpe1gb rdtscp lm constant_tsc rep_good nopl xtopology tsc_reliable nonstop_tsc cpuid pni pclmulqdq ssse3 fma cx16 pcid sse4_1 sse4_2 movbe popcnt aes xsave avx f16c rdrand hypervisor lahf_lm abm 3dnowprefetch invpcid_single ssbd ibrs ibpb stibp ibrs_enhanced fsgsbase bmi1 avx2 smep bmi2 erms invpcid avx512f avx512dq rdseed adx smap avx512ifma clflushopt avx512cd sha_ni avx512bw avx512vl xsaveopt xsavec xgetbv1 xsaves avx512vbmi umip avx512_vbmi2 gfni vaes vpclmulqdq avx512_vnni avx512_bitalg avx512_vpopcntdq rdpid fsrm flush_l1d arch_capabilities

When can the arm platform be supported?

when executing "sh build.sh",cmd line reported is as folllowed:
/usr/bin/ld: smtl.o: in function `smtl_thread_func(void*)': smtl.cpp:(.text+0x78): undefined reference to `pthread_setaffinity_np' /usr/bin/ld: smtl.o: in function `smtl_init(smtl_t**, std::vector<int, std::allocator<int> >&)': smtl.cpp:(.text+0x3ff): undefined reference to `pthread_create' /usr/bin/ld: smtl.o: in function `smtl_fini(smtl_t*)': smtl.cpp:(.text+0x639): undefined reference to `pthread_join'
when I add -lpthread in build.sh ,errors were still reported.

I got the following errors when executing sh build.sh

cpufp_x86.c: In function ‘main’:
cpufp_x86.c:333:51: error: ‘i’ undeclared (first use in this function)
  if (strspn(argv[1], "0123456789") == strlen(argv[i]))
                                                   ^
cpufp_x86.c:333:51: note: each undeclared identifier is reported only once for each function it appears in
cpufp_x86.c:334:3: error: expected expression before ‘int’
   int num_threads = atoi(argv[1]);
   ^
cpufp_x86.c:335:28: error: ‘num_threads’ undeclared (first use in this function)
  printf("Thread(s): %d\n", num_threads);
                            ^
gcc: error: cpufp_x86.o: No such file or directory

CPU: Intel 8458P

# ./build_x64.sh
x64/cpufp.cpp: In function ‘void cpufp_register_isa()’:
x64/cpufp.cpp:291:31: error: ‘avx512f_fp16_fma_f16f16f16’ was not declared in this scope; did you mean ‘avx512_fp16_fma_f16f16f16’?
291 | 0x20000000LL, 1024LL, avx512f_fp16_fma_f16f16f16);
| ^~~~~~~~~~~~~~~~~~~~~~~~~~
| avx512_fp16_fma_f16f16f16
/usr/bin/ld: cannot find build_dir/cpufp.o: No such file or directory
collect2: error: ld returned 1 exit status

cpufp_x86.c: In function ‘main’:
cpufp_x86.c:333:51: error: ‘i’ undeclared (first use in this function)
333 | if (strspn(argv[1], "0123456789") == strlen(argv[i]))
| ^
cpufp_x86.c:333:51: note: each undeclared identifier is reported only once for each function it appears in
cpufp_x86.c:334:3: error: expected expression before ‘int’
334 | int num_threads = atoi(argv[1]);
| ^~~
cpufp_x86.c:335:28: error: ‘num_threads’ undeclared (first use in this function)
335 | printf("Thread(s): %d\n", num_threads);
| ^~~~~~~~~~~
gcc: error: cpufp_x86.o: No such file or directory

When I execute sh build.sh，an error occurred:

asm/cpufp_kernel_x86_avx_vnni.S: Assembler messages:
asm/cpufp_kernel_x86_avx_vnni.S:16: Error: unsupported instruction `vpdpbusd'
asm/cpufp_kernel_x86_avx_vnni.S:17: Error: unsupported instruction `vpdpbusd'
asm/cpufp_kernel_x86_avx_vnni.S:18: Error: unsupported instruction `vpdpbusd'
asm/cpufp_kernel_x86_avx_vnni.S:19: Error: unsupported instruction `vpdpbusd'
asm/cpufp_kernel_x86_avx_vnni.S:20: Error: unsupported instruction `vpdpbusd'
asm/cpufp_kernel_x86_avx_vnni.S:21: Error: unsupported instruction `vpdpbusd'
asm/cpufp_kernel_x86_avx_vnni.S:22: Error: unsupported instruction `vpdpbusd'
asm/cpufp_kernel_x86_avx_vnni.S:23: Error: unsupported instruction `vpdpbusd'
asm/cpufp_kernel_x86_avx_vnni.S:24: Error: unsupported instruction `vpdpbusd'
asm/cpufp_kernel_x86_avx_vnni.S:25: Error: unsupported instruction `vpdpbusd'
asm/cpufp_kernel_x86_avx_vnni.S:42: Error: unsupported instruction `vpdpwssd'
asm/cpufp_kernel_x86_avx_vnni.S:43: Error: unsupported instruction `vpdpwssd'
asm/cpufp_kernel_x86_avx_vnni.S:44: Error: unsupported instruction `vpdpwssd'
asm/cpufp_kernel_x86_avx_vnni.S:45: Error: unsupported instruction `vpdpwssd'
asm/cpufp_kernel_x86_avx_vnni.S:46: Error: unsupported instruction `vpdpwssd'
asm/cpufp_kernel_x86_avx_vnni.S:47: Error: unsupported instruction `vpdpwssd'
asm/cpufp_kernel_x86_avx_vnni.S:48: Error: unsupported instruction `vpdpwssd'
asm/cpufp_kernel_x86_avx_vnni.S:49: Error: unsupported instruction `vpdpwssd'
asm/cpufp_kernel_x86_avx_vnni.S:50: Error: unsupported instruction `vpdpwssd'
asm/cpufp_kernel_x86_avx_vnni.S:51: Error: unsupported instruction `vpdpwssd'
gcc: error: cpufp_kernel_x86_avx_vnni.o: No such file or directory

Should I use a specified version of gcc? or add some options to build.sh?

Current version of my gcc is like below:

Using built-in specs.
COLLECT_GCC=gcc
COLLECT_LTO_WRAPPER=/usr/lib/gcc/x86_64-linux-gnu/9/lto-wrapper
OFFLOAD_TARGET_NAMES=nvptx-none:hsa
OFFLOAD_TARGET_DEFAULT=1
Target: x86_64-linux-gnu
Configured with: ../src/configure -v --with-pkgversion='Ubuntu 9.4.0-1ubuntu1~20.04.1' --with-bugurl=file:///usr/share/doc/gcc-9/README.Bugs --enable-languages=c,ada,c++,go,brig,d,fortran,objc,obj-c++,gm2 --prefix=/usr --with-gcc-major-version-only --program-suffix=-9 --program-prefix=x86_64-linux-gnu- --enable-shared --enable-linker-build-id --libexecdir=/usr/lib --without-included-gettext --enable-threads=posix --libdir=/usr/lib --enable-nls --enable-clocale=gnu --enable-libstdcxx-debug --enable-libstdcxx-time=yes --with-default-libstdcxx-abi=new --enable-gnu-unique-object --disable-vtable-verify --enable-plugin --enable-default-pie --with-system-zlib --with-target-system-zlib=auto --enable-objc-gc=auto --enable-multiarch --disable-werror --with-arch-32=i686 --with-abi=m64 --with-multilib-list=m32,m64,mx32 --enable-multilib --with-tune=generic --enable-offload-targets=nvptx-none=/build/gcc-9-Av3uEd/gcc-9-9.4.0/debian/tmp-nvptx/usr,hsa --without-cuda-driver --enable-checking=release --build=x86_64-linux-gnu --host=x86_64-linux-gnu --target=x86_64-linux-gnu
Thread model: posix
gcc version 9.4.0 (Ubuntu 9.4.0-1ubuntu1~20.04.1)

Hi, I run the benchmark on the CanMV Kendryte K230, which has a single XuanTie C908 RISC-V core that supports RVV 1.0.
Here are the results:

$ ./cpufp --thread_pool=[0]
Number Threads: 1
Thread Pool Binding: 0
---------------------------------------------------------------
| Instruction Set | Core Computation       | Peak Performance |
| vector          | vfmacc.vf(f16,f16,f16) | 25.014 GFLOPS    |
| vector          | vfmacc.vv(f16,f16,f16) | 25.01 GFLOPS     |
| vector          | vfmacc.vf(f32,f32,f32) | 12.507 GFLOPS    |
| vector          | vfmacc.vv(f32,f32,f32) | 12.508 GFLOPS    |
| vector          | vfmacc.vf(f64,f64,f64) | 6.254 GFLOPS     |
| vector          | vfmacc.vv(f64,f64,f64) | 6.2541 GFLOPS    |
---------------------------------------------------------------

BTW: please indicate that "ime" is not a standard RISC-V extension, but rather a SpacemiT custom vendor extension.

Edit: just saw that the README mentions it, bit imo it shouldn't be called ime in the table.

测试时报错是无法识别的指令集

@pigirons
Why this error appears in my build? Should I upgrade as to a new version? My "Test steps and Environment" is also listed below.
cpufp_kernel_x86_avx512_vnni.s:16: Error: no such instruction: `vpdpbusd %zmm0,%zmm0,%zmm0'

PS: I already update gcc to 9.2.0 in Centos 7.7.
Thanks for your help.

/Test steps and Environment**/
[root@baseimage cpufp]# as -o cpufp_kernel_x86_avx512_vnni.o cpufp_kernel_x86_avx512_vnni.s
cpufp_kernel_x86_avx512_vnni.s: Assembler messages:
cpufp_kernel_x86_avx512_vnni.s:16: Error: no such instruction: vpdpbusd %zmm0,%zmm0,%zmm0' cpufp_kernel_x86_avx512_vnni.s:17: Error: no such instruction: vpdpbusd %zmm1,%zmm1,%zmm1'
cpufp_kernel_x86_avx512_vnni.s:18: Error: no such instruction: vpdpbusd %zmm2,%zmm2,%zmm2' cpufp_kernel_x86_avx512_vnni.s:19: Error: no such instruction: vpdpbusd %zmm3,%zmm3,%zmm3'
cpufp_kernel_x86_avx512_vnni.s:20: Error: no such instruction: vpdpbusd %zmm4,%zmm4,%zmm4' cpufp_kernel_x86_avx512_vnni.s:21: Error: no such instruction: vpdpbusd %zmm5,%zmm5,%zmm5'
cpufp_kernel_x86_avx512_vnni.s:22: Error: no such instruction: vpdpbusd %zmm6,%zmm6,%zmm6' cpufp_kernel_x86_avx512_vnni.s:23: Error: no such instruction: vpdpbusd %zmm7,%zmm7,%zmm7'
cpufp_kernel_x86_avx512_vnni.s:24: Error: no such instruction: vpdpbusd %zmm8,%zmm8,%zmm8' cpufp_kernel_x86_avx512_vnni.s:25: Error: no such instruction: vpdpbusd %zmm9,%zmm9,%zmm9'
[root@baseimage cpufp]#
[root@baseimage cpufp]#
[root@baseimage cpufp]# as --version
GNU assembler version 2.27-41.base.el7_7.1
Copyright (C) 2016 Free Software Foundation, Inc.
This program is free software; you may redistribute it under the terms of
the GNU General Public License version 3 or later.
This program has absolutely no warranty.
This assembler was configured for a target of `x86_64-redhat-linux'.
[root@baseimage cpufp]#
[root@baseimage cpufp]#
[root@baseimage cpufp]# lscpu
Architecture: x86_64
CPU op-mode(s): 32-bit, 64-bit
Byte Order: Little Endian
CPU(s): 8
On-line CPU(s) list: 0-7
Thread(s) per core: 2
Core(s) per socket: 4
Socket(s): 1
NUMA node(s): 1
Vendor ID: GenuineIntel
CPU family: 6
Model: 85
Model name: Intel(R) Xeon(R) Platinum 8269CY CPU @ 2.50GHz
Stepping: 7
CPU MHz: 3099.998
BogoMIPS: 6199.99
Hypervisor vendor: KVM
Virtualization type: full
L1d cache: 32K
L1i cache: 32K
L2 cache: 1024K
L3 cache: 36608K
NUMA node0 CPU(s): 0-7
Flags: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 ss ht syscall nx pdpe1gb rdtscp lm constant_tsc rep_good nopl eagerfpu pni pclmulqdq monitor ssse3 fma cx16 pcid sse4_1 sse4_2 x2apic movbe popcnt aes xsave avx f16c rdrand hypervisor lahf_lm abm 3dnowprefetch invpcid_single fsgsbase tsc_adjust bmi1 hle avx2 smep bmi2 erms invpcid rtm mpx avx512f avx512dq rdseed adx smap avx512cd avx512bw avx512vl xsaveopt xsavec xgetbv1 arat avx512_vnni